INTRODUCTION
Computers are essential to our everyday existence. The era of digital technology has resulted in a significant increase in the use of electronic devices. Problems with vision caused by computer use are referred to as computer vision syndrome (CVS). This condition does not refer to a singular issue; rather, it encompasses a variety of eye strain and discomfort. Studies indicate that approximately 50% to 90% of individuals who engage with a computer screen experience at least some symptoms.
Working adults are not the sole individuals impacted. Children who gaze at tablets or utilize computers throughout the school day may also experience problems, particularly if the lighting conditions and their posture are suboptimal.
Computer Vision Syndrome & Symptoms
Computer vision syndrome (CVS), otherwise known as digital eye strain, is described by the American Optometric Association as: A set of eye and vision related problems’ that are caused by extensive computer use, as well as other digital devices like e-readers and cell phones, due to increased stress on ‘near vision’.
Symptoms of computer vision syndrome encompass:
- Eye discomfort
- Intermittent blurred vision
- Increased sensitivity to bright lights
- Difficulty in keeping your eyes open
- Headaches located behind your eyes
Numerous individuals suffering from computer vision syndrome also experience aches and pains in other areas of their bodies. This often occurs when your posture is not optimal or when you stretch and strain your neck to view your screen. Symptoms may include discomfort in your neck, shoulders and back.
CAUSES
Extended Screen Time: A primary contributor to Computer Vision Syndrome (CVS) is the prolonged use of computers, tablets, or smartphones and when used continuously for two hours or more can provoke symptoms.
Insufficient Blinking: People who work on digital devices tend to blink their eyes less, unlike the normal blinking process that should occur between 18 to 22 times.
Screen Features: Computer screens have pixelation, making refocusing a constant process, and eye muscles get tired because of it.
Inadequate Viewing Distance and Angle: Standing too close or at an unfavorable angle increases eye strain. Maintain approximately 20- 28 inches from the eyes, with the screen slightly below eye level.
Environmental Factors: Inadequate lighting, for example, excessive glare from the windows and improper working space arrangement, can trigger exacerbated symptoms
Uncorrected Vision Problems: Patients who have issues with their vision, for example, astigmatism or presbyopia, can experience aggravated symptoms of CVS. Using incorrect prescription lenses for doing tasks on the computer can also trigger increased amounts of eye strain.
Posture & Ergonomics: Improper working posture while working on electronic devices can trigger strain in the neck or shoulder regions, resulting in pain.
DIAGNOSIS
A thorough eye exam can be used to identify computer vision syndrome. Testing could involve the following,
- Examine the patient’s medical history to identify any symptoms they may be having, as well as any underlying medical conditions, prescription drugs, or environmental factors that might be causing computer-related symptoms.
- Measurements of visual acuity are used to determine how much vision may be impacted.
- To find the right lens power to correct for any refractive errors (nearsightedness, farsightedness, or astigmatism), a refraction is performed.
- Testing the eyes’ ability to focus, move, and cooperate.
TREATMENT
You can lessen or perhaps avoid the consequences of computer vision syndrome by following these easy steps:
Computer screen location:
The computer screen should ideally be 15 to 20 degrees below eye level, or about 4 or 5 inches, when measured from the center of the screen and 20 to 28 inches from the eyes.
Reference materials:
These should be positioned above the keyboard and beneath the monitor. If this isn’t possible, a document holder close to the monitor can be used.
Lighting:
The computer screen should be oriented to reduce glare, particularly from overhead lighting or windows.
Anti-glare screens:
The screen glare filter helps to cut down the glare from lights. These filters reduce the amount of light that reflects off the screen.
Seating arrangement:
Chairs should have comfortable cushions and fit the body well. Adjust the chair so that your feet are flat on the floor. Position your arms to support the keyboard, when typing.
Rest breaks:
Take short breaks from the computer after long periods, to avoid eye strain. Take a 15-minute break after two hours of continuous use of computer.
Blinking:
Blink often while using a computer to lower the risk of dry eyes. Blinking keeps the surface of your eyes hydrated.
CONCLUSION
A significant section of the population is susceptible to computer vision syndrome, as has already been mentioned. To address the problems associated with computer vision syndrome, however, long-term therapy solutions need to be investigated.
Since the disorder manifests as a range of nebulous ailments that significantly impair people’s quality of life, every practitioner should be well-versed on latest developments regarding this to give the best possible therapy for their patients. In conclusion, the best ways to treat the problem is through lifestyle changes, patient education, and preventive measures.
