Can Non-Myopic Individuals Wear Glasses? The Truth About Blue Light Filters - Ophthalmology

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Can people without myopia wear glasses? Are blue light blocking glasses necessary?


Hello, doctor.
By chance, I often have foreign objects getting into my eyes (such as insects, sand, ash, etc.), so even though I am not nearsighted, I would like to try wearing glasses to reduce the likelihood of foreign objects entering my eyes (both eyes have a vision of 1.0, measured at the end of October last year).

1.
Will wearing non-prescription glasses affect my vision in any way?
2.
Due to my work, I use a computer for long periods.
Do blue light filtering glasses really help reduce eye strain, or is this claim just a marketing strategy by manufacturers?
3.
During a follow-up after a corneal abrasion, the doctor indicated that it had healed and would not have any impact (this occurred at the end of October last year).
However, I still feel dryness and discomfort in the area where I was injured.
Is this a normal phenomenon, or should I schedule another follow-up?
Thank you for your response, doctor.

ningmeng qishuǐ, 20~29 year old female. Ask Date: 2016/01/12

Dr. Gao Pilin reply Ophthalmology


Hello, Lemon Soda:
1.
No, but it is still important to choose lenses with better optical quality, otherwise it may cause discomfort.

2.
There is currently no medical evidence supporting blue light filtering glasses, so they can be omitted for now.
Dr.
Wang has an insightful lecture; please refer to it: https://youtu.be/hp7YaHW8f-U.

3.
It is possible that you have insufficient or poor-quality tears, which can lead to dryness and corneal abrasions.
Please seek an evaluation to determine if artificial tears are necessary.

Taiwan E-Hospital Puzi Hospital Ophthalmology: Monday to Friday, 8:00 AM to 12:00 PM; Wednesday afternoon, 1:00 PM to 4:30 PM.
I hope to have the opportunity to serve you.

Gao Pilin

Reply Date: 2016/01/12

More Info


It's great that you're taking an active interest in your eye health and considering the use of glasses, even as a non-myopic individual. Let's address your questions one by one.

1. Wearing Non-Prescription Glasses: Wearing non-prescription glasses, often referred to as "plano" glasses, will not negatively impact your vision. These glasses can provide a physical barrier that may help reduce the likelihood of foreign objects entering your eyes, especially if you are frequently exposed to environments where this is a concern, such as outdoors or in dusty areas. However, it's essential to choose high-quality lenses that offer good optical clarity. Poor-quality lenses can cause visual discomfort or distortion, which might lead to eye strain.

2. Blue Light Filtering Glasses: The effectiveness of blue light filtering glasses is a topic of ongoing debate in the medical community. While many manufacturers claim that these glasses can reduce eye strain and improve comfort during prolonged computer use, scientific evidence supporting these claims is limited. Some studies suggest that blue light exposure, particularly from screens, can disrupt sleep patterns and contribute to digital eye strain, but the extent of this effect varies among individuals. If you find that your eyes feel more comfortable when wearing blue light filtering glasses, it may be worth continuing to use them, but they should not be seen as a cure-all. Regular breaks from the screen, proper lighting, and maintaining a comfortable distance from your monitor are also crucial for reducing eye strain.

3. Post-Corneal Injury Symptoms: It's not uncommon to experience dryness or discomfort in the area of a previous corneal injury, even after it has healed. The cornea can be sensitive, and if the tear film (the layer of moisture that protects the eye) is compromised, it can lead to symptoms of dryness or irritation. If you are experiencing persistent discomfort, it would be wise to consult with your eye care professional. They may recommend artificial tears or other treatments to help alleviate these symptoms. It’s essential to ensure that your eyes are adequately lubricated, especially if you spend long hours in front of a computer or in dry environments.

In summary, wearing non-prescription glasses can be beneficial for protecting your eyes from foreign objects, and while blue light filtering glasses may provide some comfort, their necessity is still debated. If you continue to experience discomfort from your previous corneal injury, seeking further evaluation is advisable. Regular eye check-ups are crucial for maintaining eye health, especially if you have a history of eye injuries. Always prioritize your eye health by consulting with a qualified eye care professional for personalized advice and treatment options.

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