Skip to main content

Stay up to date: COVID-19 and your eye health. Telehealth, Office Protocols, & More

Silicon Valley Eye Physicians
Appointments
Telehealth
Myopia Solutions
Home »

News

Why Does Outdoor Time Delay Or Prevent Myopia?

outdoor children 640Now that myopia (nearsightedness) is reaching epidemic proportions across the globe, it’s all the more important for parents to understand how myopia can impact their child’s future, and learn which actions they should take to protect their child’s eye health in the long run.

You see, myopia isn’t simply an inconvenience. Childhood myopia raises the risk of developing vision-robbing diseases like macular degeneration, cataracts, glaucoma, retinal detachment and diabetic retinopathy later in life.

Myopia develops as the eye elongates more than it should, causing light to focus in front of the retina instead of directly on it. This manifests as blurred distance vision and clear near vision.

While myopia is caused by a combination of circumstances, including genetic and environmental, a key factor comes down to the amount of time a child spends outdoors in the sunlight.

How Does Outdoor Play Affect Myopia?

Although researchers haven’t yet pinpointed exactly why “sun time” prevents or delays myopia, almost all agree that it plays a large role.

One possible reason is correlated to the brightness of the sun. Some experts have found that the intensity of the sun’s rays triggers a dopamine release in the retina which is thought to slow down the elongation of the eye.

Another theory holds that outdoor time encourages a child to shift their gaze from near objects to faraway ones. Excessive near work, like staring at a digital screen, is believed to be a driving force behind the stark increase in myopic individuals today.

Sending a child outdoors to play gives their eyes a break from focusing on their tablets, smartphones, homework, gaming and other near work.

Additionally, spending more time in the sunshine means more Vitamin-D production. Small-scale studies have found nearsighted people have lower levels of Vitamin D than those with normal eyesight. However, more research is needed to confirm this theory.

Here’s the Bottom Line

Childhood myopia increases the risk of developing sight-threatening eye diseases later in life. Parents should be proactive about their child’s eye health and do what they can to prevent myopia from developing or progressing at a rapid rate.

Even if your child doesn’t have myopia, encouraging them to play outdoors for several hours a day has been found to prevent the onset of myopia in certain instances.

So go ahead and give your child a water bottle, sunscreen, a pair of sunglasses—and send them out to play! Children aged 6 and up should spend about 2 hours daily outside in the sunshine.

But sun time alone isn’t enough to ensure the best possible outcome for their eye health. A myopia management program can help give your child the best odds of healthy vision for a lifetime.

To learn more about the myopia treatments we offer and schedule your child’s myopia consultation, call Silicon Valley Eye Physicians today!

Frequently Asked Questions with Dr. David Mark

Q: #1: What is myopia management?

  • A: Myopia management is the science-based method used to slow or halt the progression of myopia. There are several options available, and your optometrist will sit down with you and your child to discuss which treatment option is most suitable for your child’s needs.

Q: #2: Who can benefit from myopia management?

  • A: Myopia management treatments have been approved for children as young as 8 and can be used until early adulthood. Myopia management is great for children with low myopia but can also be effective for slowing myopia progression in kids and teens with moderate to high myopia. Contact us to find out whether your child is a candidate for myopia management.

Silicon Valley Eye Physicians serves patients from Sunnyvale, Los Altos, Mountain View and Cupertino, all throughout California.

 

Visit MyopiCare to Learn More
Want To Discuss Myopia? Call 408-733-3733

Can Drinking Coffee Relieve Dry Eyes?

Can Drinking Coffee Relieve Dry Eyes 640Many of us enjoy a cup or two of coffee in the morning to keep our eyes awake and mind alert. But what else can caffeine do for our eyes?

If you suffer from dry eye syndrome (DES), characterized by dry, itchy and red eyes, you may have been advised by a friend or doctor to steer clear of caffeinated coffee due to its diuretic effect. Caffeinated beverages increase the frequency of urination, which leads to water loss. Yet some research suggests that a cup of caffeinated joe might actually promote tear production.

Below, we’ll explore scientific research that studies the relationship between caffeine consumption and tear film.

What is Dry Eye Syndrome?

  • Dry eye syndrome (DES) is an eye condition characterized by dry, stinging, red, itchy eyes. It can be caused by several factors: poor tear quality, insufficient tears, allergies, environmental irritants and excessive digital screen time. Left untreated, DES can lead to corneal damage and scarring and even permanent vision loss in severe cases.
    Certain foods and beverages have been shown to improve the symptoms of DES, like fish high in omega 3s, leafy greens, seeds, nuts, and…possibly coffee.

How Does Caffeine Consumption Impact Dry Eye Syndrome?

  • Caffeine contains a chemical called xanthine, which has been shown to stimulate tear production when applied topically to the eye. As yet, there is insufficient published research to confirm that ingesting xanthine provides the same tear-producing effect, though preliminary studies seem to suggest that it does.


A study published in Optometry and Vision Science found that drinking caffeinated beverages significantly increased tear production after 45-90 minutes. Interestingly, age, gender and body mass had no bearing on the outcome.

Another study, published in Ophthalmology, found similar results. Researchers measured the participants’ tear film twice: once after consuming caffeine and once after drinking a placebo. Their tear film was thickest after consuming caffeine, especially in those with a specific genetic makeup.

While both of these studies showed promising results, they didn’t include enough participants to accurately project the findings onto the general population.

If You Have Dry Eye Syndrome, We Can Help

Finding relief from dry eye syndrome relies on understanding the root cause of your symptoms. Only your eye doctor can diagnose the problem and determine the best treatment for you, whether in the form of medicated or lubricating eye drops, in-clinic treatments, personalized eye hygiene products like eyelid cleansing wipes, nutritional supplements and more.

For long-lasting relief from dry eye syndrome, schedule your dry eye consultation with Silicon Valley Eye Physicians today.

Silicon Valley Eye Physicians serves patients from Sunnyvale, Los Altos, Mountain View, and Cupertino, all throughout California.

References

Request A Dry Eye Appointment
Do You Think You Have Dry Eye? Call 408-739-6200

Allergy Season Is Here And Stronger Than Ever

Spring is here! Flowers are blooming and pollen is drifting through the warm air, wreaking havoc on people who suffer from eye allergies. Many people say their seasonal allergies arrived ahead of schedule this year, and that their symptoms are more intense than in previous years.

Below, we’ll explain what eye allergies are and why allergy season is becoming longer and stronger.

What Are Eye Allergies?

Eye allergies, also known as “allergic conjunctivitis,” are the eyes’ reaction to irritants and allergens in the environment. Symptoms of eye allergies may vary from inconvenient to debilitating, but they’re usually treatable.

Symptoms of eye allergies include red, itchy, swollen eyes, watery or painful eyes, and are often accompanied by sneezing, a runny nose and nasal congestion.

Major causes of eye allergies include:

  • Pollen
  • Dust
  • Pet dander
  • Mold
  • Makeup and cosmetic products
  • Preservatives found in eye drops

Eye allergies are treated on a case-by-case basis, depending on what allergen is the culprit. Treatment can include oral or topical antihistamines, decongestants, lubricating eye drops and limiting exposure to allergens.

Why Does Allergy Season Seem Longer and Stronger This Year?

Several studies have observed the relationship between climate change and pollen season. As atmospheric temperatures rise, flowers and trees sense the warmth and start to release pollen.

When comparing the pollen season of 1990 to that of 2018, scientists noticed that it had increased by 20 days during that timespan. What’s more, the environmental pollen concentration had also increased by 21% over the same period. In other words, allergy season is becoming longer and more intense each year.

Aside from warming temperatures, the increase in atmospheric carbon dioxide (CO2) levels also plays a role in making allergy season more intense. Plants need CO2 to grow, and more CO2 means larger, stronger plants.

As atmospheric CO2 increases with climate change, flowers are producing significantly more pollen. CO2 can also make certain plants more potent and increase the amount of allergen-containing particles per pollen grain.

In fact, if atmospheric CO2 levels keep rising at this pace, it is projected that by the end of the century there will be 200% more pollen in the air!

You may be wondering if you’re in the clear because there aren’t many pollen-producing plants in your area. But some research suggests that changes in wind patterns due to climate change can expose people to pollen originating hundreds of miles away.

If You Suffer From Eye Allergies, We Can Help!

Although climate change is bad news for allergy sufferers, the good news is that we can help you manage your symptoms.

Don’t let eye allergies put a damper on your time in the sun. To schedule an eye exam and learn how we can offer long-lasting relief, call Silicon Valley Eye Physicians in Sunnyvale today!

At Silicon Valley Eye Physicians, we put your family’s needs first. Talk to us about how we can help you maintain healthy vision. Call us today: 408-739-6200 or book an appointment online to see one of our Sunnyvale eye doctors.

Want to Learn More? Read on!

A Guide to Scleral Lenses

What’s Worse For Your Vision: High Myopia (Nearsightedness) or Smoking?

4 Ways Vision May Be Affected Following A Stroke

FOLLOW US:

Q&A

#1: What else can you do to ease the symptoms of eye allergies?

Wearing wraparound sunglasses whenever outdoors can protect your eyes from airborne allergens like pollen and dust. Also, you may want to temporarily stop wearing contact lenses until your symptoms subside. Allergens can build up on the surface of the lens and irritate your eyes every time you insert them. Additionally, keep your windows closed whenever you’re indoors to prevent allergens from entering.

#2: Are eye allergies dangerous?

Eye allergies rarely cause any permanent damage to your eyes, but they can cause temporary blurred vision. Symptoms of eye allergies can be quite distracting and even painful, so be sure to visit your local optometrist at the first sign of discomfort.

Living With Keratoconus | Kenneth’s Story

Kenneth’s Story 640From the time Kenneth was 11 years old, he wore glasses to correct his quickly deteriorating vision. He was always forced to sit at the front of the classroom and felt embarrassed by it. This time in his life marked the beginning of seemingly endless visits to various eye doctors to try and figure out what was causing his vision problems.

Four years later, at the age of 15, Kenneth was diagnosed with keratoconus, a progressive eye disease that affects the shape and condition of the cornea. Kenneth was referred by his ophthalmologist to an optometrist who [specializess] in treating keratoconus.

The optometrist explained that keratoconus is a condition that causes the cornea to thin and bulge out in a cone-like shape, leading to visual impairment. The early stages of this progressive eye disease usually cause mild to moderate vision problems that can be corrected with eyeglasses. But as the cornea’s shape continues to distort, glasses are no longer suitable and rigid contact lenses must be prescribed.

The optometrist prescribed rigid gas permeable contact lenses, which significantly improved Kenneth’s vision. But Kenneth sometimes found his contacts hard to manage, and even uncomfortable at times. People would tell him to just ‘switch back to glasses’ and ‘stop wearing the lenses if they give you so much grief.’

That wasn’t possible. He simply couldn’t see without the contacts.

Thankfully, before Kenneth’s condition progressed to the point where cornea surgery was required, new technology gave him fresh hope.

At the age of 20, Kenneth was fitted for scleral contact lenses for the first time. The day of the fitting was an emotional one for him and his family, as he was truly able to see the world around him in detail—and with great comfort.

Kenneth walked out of the optometrist’s practice, looked around, and saw leaves on the trees for the first time in 5 years. Prior to this, his perception of trees were brown stumps with green shrubbery—but never leaves.

He noticed that the cars driving past him on the street looked astonishingly clean. Nothing seemed faded anymore. Colors were vivid, lines were sharp.

The detail and clarity of each object were genuinely overwhelming for him. His mom, who also suffers from keratoconus, was overcome with emotion as she watched her son visually experience his surroundings in a whole new way.

From that day forward, Kenneth’s life changed drastically. His scleral contact lenses enabled him to function normally and achieve his goals. Wearing his sclerals allows him to work, exercise, socialize and be his authentic self.

Kenneth confesses that when he doesn’t wear his sclerals, his entire personality changes. He becomes timid, quiet and apprehensive.

Having keratoconus will no longer hinder Kenneth from living his best life, and it doesn’t have to hinder you or an affected loved one.

To a person with corneal disease, scleral lenses can be truly life-changing. If you or a loved one has keratoconus or other corneal irregularities, contact Silicon Valley Eye Physicians today.

Silicon Valley Eye Physicians serves patients from Sunnyvale, Los Altos, Mountain View, and Cupertino, all throughout California.

Q&A

Q: #1: How do scleral lenses work?

  • A: Scleral contact lenses are hard lenses that have a much larger diameter than standard soft contact lenses. They vault over the entire cornea and rest on the sclera (the white of the eye) so that no part of the lens is touching the cornea itself. The lens holds a reservoir of soothing and nourishing fluid between the eye and the lens, providing the best in visual clarity and comfort.

Q: #2: What other conditions do scleral lenses help with?

  • A: Any patient with irregular corneas can benefit from scleral lenses. They’re also suitable for patients with severe dry eye syndrome, as the fluid reservoir helps maintain comfort and ocular hydration. They’re also great for patients with very high refractive errors (high myopia, hyperopia, or astigmatism). Speak to your eye doctor if you think scleral lenses may be right for you.


Request A Scleral Lens Appointment
Can Scleral Lenses Help You? Find Out! 408-739-6200

5 Vision Therapy Myths Debunked

5 Vision Therapy Myths 640There’s a lot of misinformation out there, especially when it comes to vision therapy — a customized program that trains the eyes and brain to work together more effectively and efficiently.

We are here to dispel those myths.

5 Myths and Facts about Vision Therapy

1. Myth: Vision therapy is just for children

Fact: People of all ages can benefit from vision therapy.

Although vision therapy is widely prescribed for younger patients, many adults have benefited from a personalized vision therapy program. That’s because the basis of vision therapy is neuroplasticity — the brain’s ability to change and learn new habits.

Your brain is capable of forming new neural pathways throughout your entire life, so vision therapy can be effective at any age.

2. Myth: Vision therapy isn’t based on scientific research

Fact: There are numerous scientific studies that prove the effectiveness of vision therapy, funded and published by the National Eye Institute (NEI).

In fact, according to several studies, vision therapy is the most effective treatment for the most common binocular vision problem, convergence insufficiency. Research also supports the efficacy of vision therapy when it comes to lazy eye (amblyopia), eye turn (strabismus), and difficulties related to reading and learning.

3. Myth: All vision therapy is the same

Fact: No two vision therapy treatments are alike. Each patient’s condition is unique and is treated accordingly.

Vision therapists use a host of different exercises, devices, computer programs, lenses, prisms, and other equipment for treatment. Your optometrist will decide which options will benefit your condition.

4. Myth: Eye surgery is the only option for treating eye misalignment

Fact: While surgery may help the eyes appear more aligned, it can’t fully improve binocular function.

In other words, surgery corrects the physical problem of alignment but doesn’t teach the eyes and brain to work together. That’s why vision therapy is often recommended for patients who have had strabismus surgery or are considering it.

5. Myth: I don’t need vision therapy, I have 20/20 eyesight

Fact: Vision therapy has little to do with eyesight, and everything to do with how your eyes function.

Even a person with 20/20 eyesight can have poor tracking skills, eye movement skills, depth perception, and other visual deficits.

In fact, you may have poor visual skills and not even know it. If you experience symptoms like headaches, dizziness, nausea, eyestrain, or difficulty with concentrating and reading, it may be time to have your vision evaluated by a vision therapist to identify any underlying problems related to your visual skills.

To schedule a functional vision evaluation for you or your child, call Silicon Valley Eye Physicians today!

Silicon Valley Eye Physicians serves patients from Sunnyvale, Los Altos, Mountain View, Cupertino, and throughout California.

Frequently Asked Questions with Dr. David Mark

Q: #1: What is vision therapy?

  • A: Vision therapy is a program of [curtomized] eye exercises that are performed in-office with an at-home component as well. Vision therapy helps develop the visual system and trains the eyes and brain to work in unison. Duration of treatment varies from patient to patient, as each person responds differently. Speak to us to learn more about what we offer and how we can help.

Q:#2: Is vision therapy covered by insurance?

  • A: Vision therapy may be covered under major medical insurance plans (vision therapy is most often applied to a medical policy as opposed to a vision policy). However, certain insurance companies may deny or place severe limits on coverage for vision therapy as a cost-saving measure. When sorting out the insurance details for vision therapy, it’s important to know what questions to ask of your insurance agent or workplace HR department.


Request A Functional Visual Exam
Find Out How We Can Help You! 408-739-6200

4 Ways Vision May Be Affected Following A Stroke

headache womanAbout 2 in 3 stroke survivors live with some degree of visual dysfunction following the stroke. Although all brains are different and everybody reacts differently, 4 major categories of vision loss can be caused by a stroke.

A stroke can damage any segment of the neural pathway that connects the eyes to the brain or a section of the brain that processes the images the eyes send it. Damage to either area can lead to vision loss.

Stroke-related vision problems can make daily living a challenge, but there is hope for stroke survivors who suffer from visual symptoms.

In honor of World Stroke Awareness Month, we’ll explore 4 types of stroke-related visual problems, and how Silicon Valley Eye Physicians can help.

1. Visual Field Loss

A stroke can damage certain areas of the brain responsible for either central or peripheral vision, causing a portion of the visual field to be lost, causing vision to be ‘blacked-out’ or have ‘blind spots.’

In most cases, the same area of the visual field is lost in both eyes. This condition is called homonymous visual field loss, meaning a person may not be able to see the right or left side of their visual field from each eye.

Affected individuals may have difficulty with reading and may bump into things located in their blind spots.

2. Visual Processing Difficulties

Sometimes, a person may be able to see everything in their visual field but will have problems processing that visual information. For example, they may have the ability to see another person’s face, but might not recognize it. They may also have difficulty identifying or interacting with common objects, affecting daily tasks such as making a cup of coffee.

Visual neglect is the most common type of visual processing problem. People with this condition aren’t aware that they aren’t seeing people or objects on the right or left side of their visual field.

3. Eye Movement Problems

A stroke can damage the delicate nerves that control the eyes’ movements. A person who cannot control their eye nerves may have difficulty moving their eyes in order to shift their focus from one object to the next or have trouble tracking moving objects.

Nystagmus (involuntary and rapid eye movements) is also a possible complication of ocular nerve damage.

If only one eye is affected, the patient will usually experience double or blurred vision. Whether one or both eyes are affected, poor depth perception can result from eye movement dysfunction.

4. Dry Eye Syndrome

Stroke-related muscle weakness is common, especially in the eyes and face. If this occurs, the eyelids may not be able to fully close during blinking or while asleep. This can lead to dry eye syndrome, causing symptoms like red, itchy, watery, burning eyes and light sensitivity.

Fortunately, many of these post-stroke visual symptoms are treatable with neuro-optometric rehabilitation therapy.

A customized neuro-optometric rehabilitation therapy program can help you return to your normal routine, or at least make daily life less challenging.

If you or a loved one have suffered a stroke, speak with Dr. Jesley Johnson about getting your vision evaluated to identify deficiencies in the visual system. If a problem is found, we’ll help guide you through all of your treatment options for the best possible outcome.

To schedule your appointment or to learn more about what we offer, call Silicon Valley Eye Physicians today.

serves patients from Sunnyvale, Los Altos, Mountain View, Cupertino, and throughout California.

Frequently Asked Questions with Dr. David Mark

Q: #1: What is neuro-optometric rehabilitation therapy?

  • A: Neuro-optometric rehabilitation therapy is a tailor-made program of visual exercises that train the eyes and brain to work together. Treatment can also include specialized lenses, prisms, and filters.

Q: #2: What other conditions can neuro-optometric rehabilitation treat?

  • A: Neuro-optometry can help patients with visual problems due to traumatic brain injury, stroke, physical disabilities and neurological conditions. A neuro-optometrist can help treat binocular vision disorders (BVD), strabismus, diplopia, oculomotor dysfunction, accommodation and convergence problems, and traumatic visual acuity loss.


Request A Functional Visual Exam
Find Out How We Can Help You! 408-739-6200

Why Sleeping In Your Contacts Is Dangerous

We all know how easy it is to fall asleep in our contact lenses. One minute you’re reading a book or watching TV, and the next you’re fast asleep. Or maybe you’re exhausted from a long day, and figure that just this once, it’s okay not to remove, clean and store your lenses.

If this happens to you, you’re far from alone.

According to the CDC, about one-third of contact lens wearers occasionally sleep with their lenses. In some cases, a person can wake up with their lenses on and just blink any discomfort away. But nodding off with your contacts can make you 6-8 times more likely to experience a contact lens-related eye infection.

Below, we’ll explore the dangers involved in getting some shut-eye while wearing your contacts, and what to do in case you fall asleep before removing them.

Why Does Sleeping in Contacts Increase Your Risk of Infection?

Your corneas need oxygen to stay healthy, but don’t have a built-in oxygen supply. During the day, your open eyes allow the cornea to receive oxygen directly from the air via your tear film.

Although your eyes remain closed while you sleep, your corneas still receive the oxygen and nutrients they need from various parts of the eye, like the aqueous humor and tears. The flow of oxygen and nutrients allows your cornea to remain crystal clear, maintain its healthy shape, and function properly.

When you sleep with contact lenses overnight or even during a short nap, the contact acts as a barrier between your tears and your cornea, significantly reducing the cornea’s nighttime oxygen supply. The technical term for this is corneal hypoxia.

A lack of oxygen may potentially cause conjunctivitis (inflammation of the conjunctiva), keratitis (inflammation of the cornea), or corneal neovascularization (the influx of new blood vessels into the cornea).

In severe but rare cases, dozing off in your contact lenses — especially repeatedly — can cause vision loss due to corneal scarring, necessitating the frequent use of medicated eye drops, or even surgery.

If You’ve Accidentally Fallen Asleep Before Removing Contacts…

Remove your contacts as soon as you wake up and don’t insert them for at least one day — give your corneas some air!

Sleeping in contacts can make the lens harder to remove from your eye, so be sure not to tug at the lens. Applying a few drops of artificial tears before removal will loosen them up.

Sleeping in your contact lenses on a regular basis could impact your eye health to the point that you may not be able to wear the lenses for many days or even weeks.

Call your eye doctor promptly if you notice any symptoms like blurred vision, redness, eye discharge, or very watery eyes after a night of wearing your lenses, or at any other time.

We understand that contact lens wear can be tricky. At Silicon Valley Eye Physicians, we provide contact lens consultations and many other eye care services for the whole family.

Schedule an appointment with Silicon Valley Eye Physicians in Sunnyvale today!

At Silicon Valley Eye Physicians, we put your family’s needs first. Talk to us about how we can help you maintain healthy vision. Call us today: 408-739-6200 or book an appointment online to see one of our Sunnyvale eye doctors.

Want to Learn More? Read on!

Signs That You Might Have Cataracts

Why Bother With Myopia Control?

How Vision and the Brain Work Together

FOLLOW US:

Why Computer Use Can Cause Dry Eye & Eye Strain

Long Term Computer Use 640Nearly 60% of the Western world use some kind of digital device — a phone, computer, tablet, TV — for at least 5 hours a day. All that screen time can result in eye irritation and dryness. In fact, dry eyes and eye strain have become so common that researchers have coined a name for it: computer vision syndrome (CVS).

What is Computer Vision Syndrome?

Computer vision syndrome (CVS) is an eye condition commonly experienced after staring at a computer screen, at arm’s length or closer, for an extended period of time. It is characterized by eye strain and dry eyes.

Because more people work and study at home as a consequence of the COVID-19 pandemic, eye doctors are reporting a significant rise in the number of adults and children exhibiting these symptoms.

The symptoms of CVS include:

  • Red, watery eyes
  • Burning or stinging eyes
  • Sensitivity to light
  • Blurred vision
  • The feeling of having something in your eyes

Computer vision syndrome symptoms are similar to those found among dry eye syndrome sufferers, a condition that also tends to develop as a result of extended computer use when blinking is reduced. Blinking is critical for good eye health as it rejuvenates the tear film on your eyes, ensuring constant hydration and protecting them from damage.

5 Tips to Prevent CVS

Luckily, computer vision syndrome can be effectively managed with a few simple adjustments to your screen time.

  1. Take regular breaks. Follow the 20-20-20 rule to prevent staring at your screen for too long. Take a break from your computer or device for 20 seconds, every 20 minutes, and look at something at least 20 feet away.
  2. Adjust your angle. Make sure your screen is 20-28 inches from your eyes and that the center of the screen is 4-5 inches lower than eye level.
  3. Use a cool-air humidifier. A humidifier adds moisture to the air and prevents your eyes from drying out.
  4. Reduce glare. Your eyes work harder to read when there is glare reflecting off your screen. Make sure your screen is positioned in a way that prevents glare from windows and lighting. You can also add a glare filter for eye comfort.
  5. Get computer glasses. Computer glasses allow your eyes to focus on a computer screen with less effort and the blue-light filter may also reduce exposure to potentially harmful blue light emitted by digital devices.

By taking regular breaks from your screen, you give your eyes and body a much-needed rest. To learn more about computer vision syndrome and to receive treatment to alleviate dry eye symptoms and eye strain, contact Silicon Valley Eye Physicians.

 

Frequently Asked Questions with Dr. David Mark, Dr. Moshe Mendelson, Dr. Jesley Johnson, Dr. Jackson Lau and Dr. Kevin Wu

 

Q: What’s the link between staring at a computer screen and dry eye?

  • A: Staring at a computer screen can reduce the number of times a person blinks by 30%. That’s problematic because blinking is essential for lubricating the eyes and keeping the protective tear film that covers the eye intact. If you find your eyes becoming irritated or uncomfortable at work, try to blink more, especially while using the computer and reading.

Q: Can blue light glasses help avoid computer vision syndrome and dry eye?

  • A: Spending long periods of time on a computer or device can negatively affect your eyes, potentially leading to computer vision syndrome and dry eye. Symptoms include blurred or double vision, headaches, eye strain, eye fatigue, sleep disruptions, and dry eyes. Computer glasses offer blue light protection by reducing the dangerous effects of blue light and the risks of computer vision syndrome.


Silicon Valley Eye Physicians serves patients from Sunnyvale, Los Altos, Mountain View, and Cupertino, all throughout California.

Request A Dry Eye Appointment
Do You Think You Have Dry Eye? Call 408-739-6200

Why Drinking Wine May Help Prevent Cataracts

Some say that just like fine wine, people get better with age. While this may be true for character and personality, it often isn’t the case as it comes to one’s eyes. Age is often accompanied with all sorts of eye problems, like macular degeneration, dry eyes and cataracts.

But these eye conditions aren’t inevitable. Certain actions, habits, foods (and drinks!) may help ward off or reduce the severity of age-related eye problems—like cataracts.

But First, What Are Cataracts?

Cataracts are a clouding of the eye’s lens that affects millions of people in North America.

Symptoms of cataracts include:

  • Cloudy or blurred vision
  • Colors that seem faded
  • Trouble seeing at night
  • Double vision
  • Seeing halos around lights
  • The need to frequently update one’s corrective lens prescription

Cataracts occur naturally with age and may not always require treatment if a person’s vision remains mostly clear. Keep in mind that eye injury and certain eye diseases may also lead to cataracts.

The main treatment for cataracts is cataract surgery—it replaces the natural, cloudy lens with a clear, artificial lens.

The onset of cataracts may be prevented or at least delayed by wearing sunglasses, quitting smoking, having regular eye exams and eating nutritious foods (yes, wine included).

How Drinking Wine May Help Prevent Cataract

Wine is loaded with eye-healthy antioxidants that may protect the eyes against cataracts and other age-related conditions. Several studies have reported numerous benefits of regular and moderate wine consumption, including protection against heart disease and macular degeneration.

A recent study, published in the journal Ophthalmology, on the relationship between wine and cataracts involves data from 490,000 individuals who voluntarily disclosed details about their lifestyle and eating habits. When all other factors were considered (age, gender, smoking, weight, diabetes, ethnicity), the findings concluded that consuming about 6.5 glasses of wine per week may decrease a person’s risk of needing cataract surgery.

According to the study, wine drinkers seem to be the least likely candidates for cataract surgery when compared to non-drinkers or those who consumed other varieties of alcohol, like beer and liquor.

It’s important to note that the study does not establish a causal relationship between wine consumption and cataract surgery—only a significant association linking the two.

The head of the study, Dr. Sharon Chua, further explains that the development of cataracts may be due to gradual oxidative stress, which is a natural part of aging. The abundance of polyphenol antioxidants in wine may help counteract oxidative stress.

Here’s the breakdown:

  • Participants who consumed a glass of wine 1-2 times per week had a 7% reduced need for cataract surgery than those who drank 1-3 times or less per month.
  • Participants who drank a glass of wine daily or almost daily experienced a 5-6% increased risk of cataract surgery compared to those who drank 1-4 times a week.
  • Consuming red wine weekly provided participants with a 14% reduced need for cataract surgery compared to those who abstained.
  • Weekly consumption of white wine and champagne reduced the need for cataract surgery by 10%.

So, what’s the bottom line?

Antioxidants are super beneficial for eye health and may help reduce your risk of developing a severe case of cataracts that would require surgery. This study suggests that moderate wine consumption on a weekly basis may lower your risk of cataract surgery when coupled with an antioxidant-rich diet. Furthermore, red wine seemed to have the most dramatic effect compared to white wine or other forms of alcohol.

Speak to your healthcare provider before making any changes to your diet, just to be safe.

For further information and guidance about keeping your eyes healthy, speak with Dr. David Mark about your options.

Don’t forget to have your annual eye exam to check for vision health by contacting Silicon Valley Eye Physicians in Sunnyvale today!

At Silicon Valley Eye Physicians, we put your family’s needs first. Talk to us about how we can help you maintain healthy vision. Call us today: 408-739-6200 or book an appointment online to see one of our Sunnyvale eye doctors.

Want to Learn More? Read on!

Tips to Relax Your Eyes

Why Do Onions Make Us Cry?

Can Drinking Coffee Relieve Dry Eyes?

FOLLOW US:

Q&A:

#1: What other foods can help protect the eyes against cataracts?

Foods that are rich in Omega-3 fatty acids, Vitamins A, C and E, whole grains, fruits, and vegetables. Try to consume produce of every color for a variety of eye-protecting nutrients. Your optometrist can offer further guidance for your personal situation.

#2: When is cataract surgery a good option?

Cataract surgery is the only method of removing cataracts, and may be necessary when your cloudy vision stops you from carrying out daily tasks, like driving and reading. If cataracts are detected, your optometrist will closely track your vision and recommend the next steps.

Boys With ADHD Are at Higher Risk for Brain Injury & Vision Problems

brother and sister 640Studies show that traumatic brain injuries (TBI) occur in approximately 17% of males worldwide.

To determine whether there is a link between inattention-hyperactivity and TBIs, The Canadian Journal of Psychiatry [analyzed] data from 724 Canadian males aged 6-34. They collected information, examined health files and administered a questionnaire to the participants’ teachers on classroom behavior.

This study is the first to show that childhood behaviors, such as inattention-hyperactivity, predicted TBIs. The study also found that boys having sustained a TBI in childhood were more likely to have another one in adolescence.

In addition to headaches, dizziness, nausea and vomiting, TBIs can also impair one’s visual function, typically causing headaches, blurred and double vision, and dizziness, among other symptoms.

At Silicon Valley Eye Physicians, we help patients recover their vision through neuro-optometric rehabilitation therapy. By performing specific eye-training exercises designed to retrain the neural processes of the brain. This rewires the brain (neuroplasticity) and treats discomforts or struggles associated with visual dysfunction following a brain injury.

What Is a TBI and How Can It Affect Vision?

Traumatic brain injury is a disruption in the normal function of the brain caused by a jolt, blow, or bump to the head, or harsh head injury, whether from a sports-related injury, fall, or car accident.

This can significantly impact the functioning of the visual system. While certain brain injuries may cause permanent damage to the optic nerve, it’s more common for it to disrupt communication between the eyes and brain.

Post TBI visual problems may include:

  • Double vision
  • Dizziness
  • Headaches
  • Focusing problems
  • Problems with walking and stride

Why Do Boys with Inattention & Hyperactivity Incur More Head Injuries Than Others?

While there’s still a lot we don’t know about the link between Attention Deficit Hyperactivity Disorder (ADHD) and concussion, research shows a few connections.

Children and adults with ADHD tend to have poor impulse control, inattention, difficulty maintaining attention, and high energy levels, all of which places them at risk of getting a concussion.

Additionally, many children diagnosed with ADHD are encouraged to participate in sports to help with social interaction, self-esteem and hyperactivity. While this is beneficial on many levels, if they have poor visual-motor speed, or depth perception they’re more likely to collide with teammates, potentially causing a concussion.

Lastly, research also suggests that ADHD may involve problems with visual or auditory processing that may also contribute to the risk of concussion.

How a Neuro-Optometrist Can Help

Neuro-optometrists offer a customized treatment regimen for people with visual deficits resulting from traumatic brain injuries (TBI). It addresses problems related to eye teaming, tracking, and focusing that can make it difficult to read and complete tasks. By training the brain to communicate with the eyes more effectively, symptoms like dizziness and headaches can be significantly reduced or disappear altogether.

If your child exhibits ADHD behaviors and has experienced a concussion contact Silicon Valley Eye Physicians for a comprehensive eye exam. If vision problems are detected, we’ll offer a personalized treatment program to strengthen any lagging visual skills that may be getting in the way of your child’s quality of life.

Frequently Asked Questions with Dr. Jesley Johnson

 

Q: What Is Neuro-Optometric Rehabilitation?

  • A: Neuro-Optometric Rehabilitation provides a personalized treatment regimen for those who have visual deficits caused by physical disabilities, traumatic brain injuries, and other neurological insults. Neuro-optometry makes use of therapeutic prisms, lenses, filters, and specific vision therapy techniques to reteach the damaged parts of the brain to function better.

Q: How Are Vision Problems Found After a TBI?

  • A: Visual aberrations following a brain injury tend to be overlooked during the initial treatment, as the patient may have serious, life-threatening issues that require urgent medical attention. Furthermore, symptoms may not even present themselves until some time has passed following the injury. The earlier you see a Neuro-Optometric Rehabilitation Optometrist, the better.Early diagnosis leads to more efficient treatment.


Request A Functional Visual Exam
Find Out How We Can Help You! 408-739-6200