Over-the-counter readers use the same lens power in both eyes and are intended for near vision. Prescription readers can account for a different correction in each eye, astigmatism and lens-centering measurements. If you see clearly at distance and have no other vision correction needs, ready-made readers may be an option, but an eye-care professional can determine the right power and check your eye health.
Ready-made readers are a simple near-vision option with matching power in both lenses. Prescription readers can be tailored for each eye and for other correction needs, so the choice depends on your current prescription and the distance you need to see clearly.
Compare the two options
| Option | How it differs and when it may suit |
|---|---|
| OTC readers | Same near-vision power in both lenses. May suit close work if you see well at distance and do not need other correction. |
| Prescription readers | Power and lens position can be set for each eye. Ask about them if your eyes need different powers, you have astigmatism, or a professional recommends a personalized correction. |
When ready-made readers may suit
The American Academy of Ophthalmology notes that reading glasses can be bought without a prescription when presbyopia is the only vision problem and distance vision is clear without glasses. The power that suits you should still be determined through an eye exam. Ready-made readers are not a substitute for your prescription if you also need distance correction or have a different correction in each eye.
Use them at the distance where you normally read. A phone, book, craft project and desktop display can sit at different distances, so one pair may not feel comfortable for every task. For screen work, compare your actual setup with our computer-glasses guide.
When to ask about prescription readers
Use your current prescription or ask your eye-care provider if you already wear glasses, need different powers for the two eyes, have astigmatism, or are unsure which power is appropriate. Do not copy the near add from a different pair into an order without checking the prescription fields and intended lens design.
If you need one pair to cover both reading and distance, compare progressive, bifocal and single-vision lenses. Our guide to reading a glasses prescription explains common fields, and the online glasses guide covers measurements and order checks.
Official reference
Common questions
Are over-the-counter reading glasses the same as prescription readers?
No. Ready-made readers generally use the same power in both eyes, while prescription lenses can be set for each eye and include other correction fields when needed.
Can I use OTC readers if I have astigmatism?
Ready-made readers do not provide a personalized cylinder and axis correction. Ask an eye-care professional whether a prescription reader or another lens design suits your needs.
Can reading glasses work for a computer?
They may be comfortable at some screen distances, but a screen can sit farther away than a book. Compare the distance you use and see our computer-glasses guide for the options to discuss.
Does an eye exam determine reading-glasses power?
Yes. The American Academy of Ophthalmology says the specific reading power should be determined by an eye exam.