Can anybody help me understand this prescription?

Question

Hey! No idea what this prescription means. Can anybody tell me if I am near or far sighted and how bad it is please? :D

R : Sph= +1.25 Cyl= -0.75 Axis= 165

L: Sph= +1.25 Cyl= N/A Axis= N/A

Thanks!

Answer 1

You could also be a younger person with hyperopia. Which means you would wear them for distance .

If you are around 40 and those are reading glasses, then the drugstore glasses wont work for you.

You have 0.75 correction for astgmatism in your right eye that a " reader" won't correct.

You know how well you can see, so the prescription isn't " bad" as you put it, but is strong enough to make a big difference.

The other responses assumed they are reading glasses...not all + powers are just reading glasses.

Answer 2

From what little I know, you are slightly farsighted (probably about 41 years old) can get reading glasses from drugstore to read and don't need glasses to drive. :Your glasses from store should read "weak."

Answer 3

When light passes through a lens, it is focused. Take a spherical lens. This would be a lens that has the same radius of curvature in all directions. For instance look at it like the surface of the face of a clock. The light is going through the lens from in front of the clock straight through to the back of the clock, or into the wall.

The curve of the lens from the 12 to 6 line is the same as the curve of the lens from the 3 to 9 or the 4 to 10 axis.

Assuming this lens is a positive lens, that means the center of the lens is thick and the edge of the lens is thin. This type of lens is convex. If the center was thin, and the outer edge thick, that's a concave lens.

Turn the clock or lens to the side so it looks like a flat line. Light passing from the left of the clock goes through it and keeps on going on the right side. The light rays passing through the center will be undeviated. The center of the front of the lens is perpendicular to the light rays. Same for the light rays exiting the 'lens'. So that central light ray goes through undeviated. That's the basis of PINHOLE glasses, where one can see clearer with a slit of pinhole as it 'eliminates' any nearsightedness or farsightedness or astigmatism..

The light rays and the power of the lens are focused a certain amount and there's a way or convention to describe that.

The power of the lens or P, is equal to 1 over the distance. The distance is in meters, or:

P=1/d

If light is focused through the lens at a meter away, that's a +1.00 lens.

If it is bent more, or is more powerful and focuses at a point a half meter away, that'd be a +2.00 lens.

Third of a meter, +3.00

Fourth of a meter, +4.00

Fifth of a meter, +5.00

In people who use minus lenses where the lens is thin in the center and thick on the outside, the lens still 'bends' the light or refracts the light rays, but they are bent "OUT". They bend out, but if you took the light rays and extended the line back through the lens, the light rays would 'appear' to have come from a point on the left of the lens. Same convention, but in minus. So a lens that bends light rays out as IF they came from a meter on the left of the lens, or where the light is coming FROM, that'd be a -1.00 lens.

If it appeared to have come from a half meter away, -2.00

third of a meter, -3.00 etc.

But not all lenses are 'spherical'. Some have a different 'bend' or radius in one direction and the light at that 'axis' is bent more or less than 90 degrees away.

For instance if the lens power from the curve of the lens from 12 to 6 is a +1.00, the light in that vertical axis is focused at a meter away.

But if the lens is like an American football and is 'more' curved from the 9 to 3 axis, for instance is focused at a half meter away, that power would be +2.00.

Depending on where you start, you either add or subtract to get to the power 90 degrees away. In this instance, Starting from the 9 to 3 axis, we'd say it is a +2.00 with -1.00 at 90 degrees. The minus one or -1.00 is subtracted from the +2.00 to get the +1.00 power we started with back there of +1.00.  

You should be able to 'figure' out what your Rx is doing now.

The "problem" with your eyes is that when your eyes are relaxed, the light rays passing through the cornea and lens, or the lens system of your eyes (take the spherical lens system of your left eye), doesn't focus ON the retina. It keeps going back behind the eye. The image ON the retina is a blur. You bend the lens of your own eye or increase its power +1.25 diopters to move that focal point UP or Forwards till the light is focused ON the retina. But that takes work. And when you're in your teens or early twenties when there's a lot of school going on, or more computer work going on, you'll get tired of cranking in that +1.25 power all the time for distance vision, then have to work even harder to add MORE power to see up close. So you'll sort of get 'tired' when reading. Your mind will wander, make it hard to concentrate. You may actually have to put your head down in the library and take a little cat nap for awhile.

By using your glasses, you eliminate the need to 'work' all the time to see... AT DISTANCE. To read you'll have to put in even more power... up to the power corresponding the distance you read, or another 2.5 to 3.00 diopters. That's a lot of work. So you get tired. Eyes tear up... etc.

You have a very 'mild' case of hyperopia or farsightedness. When people get to about 40 years or so, the lens becomes so big it's harder to focus up close. They get 'readers'. For you, it's now. Doesn't mean your eyes are 'bad'. They just have a 'weak' lens system.

And NO, exercises won't change anything. Vision therapy won't make your eye longer, won't change the lens properties or corneal curvature so that you become focused ON the retina. Doesn't work that way. Just wear the glasses and keep reading. And there are no miracle pills or herbs or formulas to change this anatomical fact. It is what it is. There are a lot of  'vision therapies', exercise programs, special vitamin formulas etc. that people will swear it made it so they could throw away their glasses.  Think 'scam'.

The more you read, better the grades, more opportunities in life that will open up for you. Keep reading. It educates you and people want 'educated' people around.... makes law school easier, med school easier,  business school, computer school, art school....all of it.....easier.

Answer 4

You are slightly farsigthed meaning you can see far and not near. You need reading glasses is all.