Myopia: Glasses vs. Laser Surgery Questions Answered

Doctor, may I ask some questions about laser treatment for myopia and glasses?

1.
Do I need two pairs of glasses for my nearsightedness—one pair for close-up vision with a lower prescription, and another pair with the correct prescription for intermediate and distance vision? If so, what would be an appropriate lower prescription? Currently, I have -5.25 diopters in both eyes; would -4.25 diopters be suitable for close-up use?
2.
Additionally, is my level of nearsightedness suitable for laser eye surgery?
3.
I've heard that nearsightedness increases the risk of future blindness or eye diseases.
If I undergo laser surgery, will those risks still apply? Thank you.

Wei Xu, 10~19 year old female. Ask Date: 2019/02/22

Dr. Gao Pilin reply Ophthalmology

Hello,
1.
Regarding myopia glasses, do I need two pairs—one for close-up use with a lighter prescription? => Yes, that can help reduce eye strain.
However, since you are still young, one pair of glasses is also fine if you don't have heavy visual demands.
I currently have a prescription of -5.25 in both eyes; would it be okay to use -4.25 for close-up work? => That would be ideal.
If you don't want to switch between pairs, you could also consider multifocal glasses.
2.
Additionally, if I want to consider laser surgery, is my degree of myopia suitable? => Your prescription is suitable, but you will need to undergo additional examinations, such as assessments of the cornea and retina.
3.
I've heard that myopia increases the risk of blindness or eye diseases in the future.
If I undergo laser surgery, will the risks still be present? => The risks related to retinal diseases remain, even after laser surgery.
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I hope to have the opportunity to serve you.

Dr.
Gao Pi-Lin

Reply Date: 2019/02/22

More Info

Understanding myopia and the options available for correction, including glasses and laser surgery, is crucial for maintaining good vision and eye health. Let's address your questions one by one.

1. Do I need two pairs of glasses for myopia?
Yes, many people with myopia (nearsightedness) find it beneficial to have two pairs of glasses: one pair for distance vision and another for near vision. The pair for distance should have the full corrective power needed for clear vision at a distance, while the near vision glasses can have a lower prescription to reduce eye strain when reading or doing close-up work.
In your case, with a current prescription of -5.25 diopters (D) in both eyes, using a pair with -4.25 D for near vision could be appropriate, as it would provide a slight reduction in power for tasks like reading. However, the exact prescription for near vision can vary based on individual comfort and the specific tasks you perform. It’s best to consult with your eye care professional to determine the most suitable prescriptions for your needs.

2. Is my degree of myopia suitable for laser surgery?
Laser eye surgery, such as LASIK or PRK, is often a viable option for individuals with myopia, but suitability depends on several factors, including the degree of myopia, corneal thickness, and overall eye health. Generally, a prescription of -5.25 D is within the range that many laser surgery centers can treat effectively. However, a thorough evaluation by an ophthalmologist is necessary to determine if you are a good candidate for the procedure. They will assess your eye's anatomy, your vision stability, and any other underlying conditions that might affect the outcome.

3. Does myopia increase the risk of blindness or eye diseases, and does laser surgery eliminate this risk?
It is true that high myopia can increase the risk of several eye conditions, including retinal detachment, glaucoma, and cataracts, which can lead to vision loss if not managed properly. Laser surgery can correct the refractive error associated with myopia, potentially reducing the risk of some complications related to high myopia. However, it does not eliminate the inherent risks associated with having myopia. Regular eye examinations remain essential, as they allow for early detection and management of any developing eye conditions.

In summary, while glasses can effectively manage myopia, having two pairs tailored for different distances can enhance comfort and reduce eye strain. Laser surgery is a potential option for your degree of myopia, but a comprehensive evaluation is necessary to determine candidacy. Lastly, while laser surgery can improve vision and reduce some risks associated with myopia, it does not completely eliminate the risk of developing eye diseases, making regular eye care crucial. Always consult with your eye care provider for personalized advice and treatment options tailored to your specific situation.

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