Computer Vision Syndrome (CVS)

Computer vision syndrome, also known as digital eye strain, encompasses a range of eye and vision-related problems caused by prolonged use of computers, tablets, e-readers, and cell phones. Individuals often experience significant eye discomfort and vision issues during extended periods of digital screen use. The severity of these symptoms typically correlates with the amount of time spent on digital devices.

Prevalence and Mitigation

With the average American worker spending seven hours a day on computers, either in the office or working from home, it is crucial to adopt strategies like the 20-20-20 rule to alleviate digital eye strain. This rule suggests taking a 20-second break to view something 20 feet away every 20 minutes.

Causes and Risk Factors

The unique characteristics and high visual demands of computer and digital screen viewing can cause the eyes to work harder, making many individuals susceptible to vision-related symptoms. Factors contributing to CVS include:

Uncorrected vision problems

Differences between viewing digital screens and printed pages

Reduced contrast between letters and background

Glare and reflections on screens

Varying viewing distances and angles

Postures adopted to see the screen clearly, leading to muscle spasms or pain

Symptoms

Common symptoms of CVS include:

Eyestrain

Headaches

Blurred vision

Dry eyes

Neck and shoulder pain

These symptoms often result from:

Poor lighting

Glare on digital screens

Improper viewing distances

Poor seating posture

Uncorrected vision problems

Diagnosis

A comprehensive eye examination can diagnose CVS, with tests focusing on visual requirements at the computer or digital device working distance. Key components of the examination include:

• Patient history

• Visual acuity measurements

• Refraction tests

• Testing eye focus, movement, and teamwork

Treatment

Treatment for digital screen-related vision problems typically involves regular eye care and making changes in how screens are viewed. Some solutions include:

Prescribing glasses specifically for computer use

Using special lens designs, powers, tints, or coatings

Vision therapy for focusing or coordination problems

Proper body posture and screen positioning

Minimizing glare and using anti-glare screens

Taking regular rest breaks and blinking frequently

Prevention

To prevent or reduce CVS symptoms, consider:

Controlling lighting and glare

Establishing proper working distances and posture

Correcting even minor vision problems

Additional Tips for Sufferers

Get an annual thorough eye exam

Ensure glasses meet job demands

Minimize blue light exposure and glare

Adjust the work area and computer for comfort

Use an adjustable copyholder

Take alternative task breaks throughout the day

Adopting these measures can help manage and prevent the discomfort and vision problems associated with computer vision syndrome.

Susan Halstead, ABOC, FNAO is Nationally and NYS Licensed Optician and Owner of Family Vision Care Center at 6B Carpenter Lane in Saratoga Springs. Susan can be reached for comments or questions by texting or calling (518)584-6111 or email Susan@familyvisioncarecenter.com