is -11 in perscripition glasses bad?

Question

i heard my optomatrst say i was negative 11 what does this mean

Answer 1

-11 is sort of a strong prescription, so probably almost nothing is seen clear by you without your glasses or contacts in. Back when I was at a - 4.5, I heard someone say that it was a strong prescription. Then I asked my eye doctor if it was all that bad and he said that he's ordered prescriptions up to a -30. After that, I decided my prescription wasn't bad at all. Mine has gone up a couple points since then, but I still don't feel bad about it. It used to be that the stronger the prescription, the thicker the lenses for your glasses would be. So -11 would be kind of thick. But these days they can make your lenses much thinner, so it isn't bad at all. And with contact lenses, there isn't a change in the thickness or anything. The most important thing is that you can see.

Answer 2

These numbers are a measure of how strong a lens is. The stronger the lens, the more it bends light. A window has a flat front and a flat back that are parallel. So light sort of goes straight through.

If you make the center thick and the edges thin (opposite from your glasses), then the light bends to a point a certain distance from the lens. The stronger the lens, the closer the focal point.

The number is based on distance in meters, P=1/d.

If your eyes are too powerful by being focused at one meter, and beyond that a blurr, you'd be given a -1.00.

Half a meter in front of you -2.00

you are a -11.00 or so, which is 1/11 of a meter or about 9 cm in front of you, which is about 4 inches.

That's where you are already in focus. So your glasses work or lenses work by making the image from distance appear to your eyes as IF that distance was 4 inches away. And you see 4 inches away just fine.

The "problem" with high myopia, besides the never ending glasses or contacts or...is that things are stretched a bit thin behind the eye. These retinas tear easily and are harder to fix. So go see a retina specialist and have your eyes checked. If he/she finds problems that later can lead to more severe problems, they can pretreat those areas so IF anything does happen, you are already protected. It's a LOT easier to prevent a retinal detachment than treat one.

Just get it checked out...statistically nothing will happen, ever. But being in this high myopia group makes it so that statistically it happens more often than "normal' eyes.

Answer 3

my prescripton is -10 and my eyesight is very poor. glasses tend to be very thick but i can get ultra thin ones, the drawback is the cost loads, so i wear contact lenses, i prefer them and they are cheaper than aying for ultra thin lenses in specs