Prescription Eyeglasses VERSES Store Bought Reading Glasses?

Question

I have a -4.00 written on my prescription and I always see reading glasses you can buy in the store that have +2.25, -3.00 and alot other ones with different + or - before them is there a difference between these and the ones bought at your opthamologist? Thanks in advance for answering!

Answer 1

My ophthalmologist says that prescription glasses are optically better. I have no doubt that this is true, but I've found that cheap reading glasses do the job for me. Try them out, you don't have much to lose financially.

Answer 2

The glasses with a - number are concave lenses and are used for nearsightedness. The reading glasses have + numbers and are convex lenses, if you try to use those for nearsightedness correction you will find you see even worse than with no glasses at all because they are the wrong kind of lenses for that condition! You'll need to get yours made at an optician; if you are really poor, you can get cheap glasses on line but if they mess up the perscription it will be a lot harder to get it straightened out than when dealing with a local optician.

Answer 3

It may vary by country, but normally ready-made glasses are only available in +ve Rx's to give reading correction to people (aged 40+, normally) with normal or near-normal distance vision.

They correct no astigmatism, assume both eyes have the same Rx ,and do not offer an individual set up for the distance between the eyes, which can matter considerably in the higher powers.

But for back-up reading glasses, they can be very effective.
For someone who only had 0.25 - 0.50 difference between the two eyes or 0.25 - 0.50 of astigmatism, ready-mades *might* be found better value than an individually made pair.

Provided someone does not skip on eye examinations, there is no health risk to using ready-made glasses.

Answer 4

I have a -4.0 prescription and I find that the easiest solution is taking of my glasses when I read and holding the text at 25 cm (10 inches) distance. I am 52 and still have some accommodation left. The real problems are intermediate distances as working on a computer, you could try multifocals. Its a good thing to have prescription glasses as they can be tailored to your face and eyes.

Answer 5

Actually , you are VERY wrong!
a PLUS reading means you are far sighted, but it ALSO can be used to correct a CHILDs cross-eyed vision, or to pull an eye that is converging INWARD toward the nose back toward the center to align it . If a childs vision is NOT corrected by the age of NINE years old.....MAJOR surgery must be done, and even THEN...usually cross-eyed is never fixable completely....this is why it is URGENT that a childs vision is corrected while they are a child. This is why you see so many young babies with patches on their eyes or nowadays they have done away with those patches. They can now use strong lenses in the one eye which is pulling and bring it back to normal.

The MINUS - is for nearsited ness. The larger the number , the worse your site. If you have a -6, you barely could see the board. Or barely see the person in front of you.

(Licensened Optician)
Hope this helps

Answer 6

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Answer 7

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Answer 8

well, the store bought reading glasses are all a +, they don't come in -...
So, for your rx... you'll need to buy prescription glasses

Answer 9

yeah there are no MINUS (-) over-the-counter lenses. that doesnt exists as far as i know WORLDWIDE. you you havent "seen" OTC lenses with a (-). only plus (+)