Eye Strain: Causes and Remedies for Discomfort

After reading for a long time, my eyes feel very strained?

Question 1: This issue has been ongoing for a long time.
After reading for just over half an hour, my eyes feel very strained, and I even experience this when reading the newspaper.
I underwent a dilated pupil examination, and the doctor said there were no problems, but the issue persists.
How can I improve this? Is there anything specific I should eat?
Question 2: Every time I watch a movie with an emotional scene that makes me cry, my eyes hurt so much that I can't open them.
After wiping them with a tissue, it feels a bit better.
Why does this happen?

A Nan, 20~29 year old female. Ask Date: 2003/06/05

Dr. Chen Xuan reply Ophthalmology

Q 1.
If you experience eye strain after looking at something up close for a period of time (such as reading a book or newspaper), it is important to rule out several common issues, such as: an incorrect prescription for your glasses, dry eyes (which can occur because the frequency of blinking decreases when you are focused, leading to insufficient tear film on the surface of the eyeball), and elevated intraocular pressure.
A detailed consultation and examination by an ophthalmologist are necessary to determine the cause.
Q 2.
When you focus on something, the frequency of blinking decreases, which can lead to dryness and damage to the corneal surface due to a lack of lubrication from tears.
If tears are produced or medication is applied at this point, the exposed nerve fibers on the corneal surface can be stimulated, resulting in pain in the eye.

Director of Cornea Department, Dr.
Chen Hsuan.

Reply Date: 2003/06/05

More Info

Understanding eye strain is crucial for maintaining good visual health, especially in our modern world where screen time is prevalent. Eye strain, or asthenopia, can manifest in various ways, including discomfort, fatigue, and even headaches. Let's delve into the causes of eye strain and explore remedies that can help alleviate discomfort.

Causes of Eye Strain
1. Prolonged Screen Time: One of the most common causes of eye strain is extended use of digital devices. The blue light emitted from screens can contribute to discomfort and fatigue. Additionally, the act of staring at a screen often leads to reduced blinking, which can cause dry eyes.

2. Poor Lighting: Inadequate or harsh lighting can strain your eyes. Reading in dim light or under overly bright conditions can lead to discomfort.

3. Incorrect Prescription: If your glasses or contact lenses are not correctly prescribed, it can lead to visual discomfort. Regular eye exams are essential to ensure your prescription is up to date.

4. Uncorrected Vision Problems: Conditions such as nearsightedness, farsightedness, or astigmatism can contribute to eye strain if not properly addressed.

5. Dry Eyes: Insufficient moisture on the eye's surface can lead to irritation and discomfort. This is particularly common in environments with low humidity or for individuals who spend long hours in front of screens.

6. Poor Posture: Sitting too close to a screen or having an improper ergonomic setup can lead to strain not only in the eyes but also in the neck and shoulders.

Remedies for Eye Strain
1. The 20-20-20 Rule: To alleviate eye strain, follow the 20-20-20 rule: every 20 minutes, take a 20-second break to look at something 20 feet away. This helps relax the eye muscles.

2. Proper Lighting: Ensure that your workspace is well-lit. Use soft, indirect lighting to reduce glare on screens and avoid harsh overhead lights.

3. Regular Eye Exams: Schedule regular check-ups with an eye care professional to ensure your prescription is accurate and to check for any underlying conditions.

4. Use Artificial Tears: If you experience dry eyes, consider using lubricating eye drops to keep your eyes moist. This can help reduce discomfort associated with prolonged screen time.

5. Adjust Your Workspace: Ensure that your computer screen is at eye level and about an arm's length away. Adjust your chair and desk to promote good posture.

6. Limit Screen Time: Take regular breaks from screens and engage in activities that do not require visual concentration, such as walking or stretching.

7. Eye Exercises: Incorporate simple eye exercises into your routine. For example, try rolling your eyes or focusing on a near object and then a far object to help relax the eye muscles.

Nutritional Considerations
While there is no specific food that can cure eye strain, a balanced diet rich in vitamins and minerals can support overall eye health. Foods high in omega-3 fatty acids, such as fish, as well as leafy greens, carrots, and nuts, can be beneficial. Staying hydrated is also crucial for maintaining moisture in the eyes.

Addressing Emotional Responses
Regarding your second question about experiencing pain in your eyes when crying during emotional moments, this can be attributed to several factors. When you cry, the tear film can become disrupted, leading to temporary discomfort. Additionally, the act of crying can cause the eye muscles to tense up, resulting in pain or difficulty opening your eyes afterward. If this occurs frequently or is accompanied by other symptoms, it may be worth discussing with an eye care professional.

In conclusion, eye strain is a common issue that can often be managed with simple lifestyle adjustments and proper care. If symptoms persist, it is essential to consult with an eye care professional for further evaluation and personalized recommendations.

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