What does -3 for my contacts/glasses prescription translate into in terms of 20/!
Question: I'm not sure if I'm phrasing this right... Sorry if it's hard to understand... Thanks for the help!
Is this considered really bad? Or mild?
Answers: I'm not sure if I'm phrasing this right... Sorry if it's hard to understand... Thanks for the help!
Is this considered really bad? Or mild?
It actually doesn't relate to 20/20. It's simply the prescription that gives you your best possible vision, whatever that may be. As someone else said, it means you're moderately near-sighted. There's no way to know from the Rx what your vision is, your Dr. would have to tell you. (it would be like reading your blood pressure medicine dosage and asking what your blood pressure is... your Dr. has to tell you what your test results are)
moderately nearsighted. -3.00 means you have to be 20 feet from something 300 feet away for you to be able to see it- thus 20/300
Both of the other answerers are correct, with the prescription you state that you have. 20/20 and so forth is the visual acuity measured when you read the letters off of the chart on the wall (usually called a 'Snellen' chart) with each eye seperately. 20/20 has been considered 'perfect' vision, though some children and post-laser patients have 20/15.If you have a prescription of -3.00 in both eyes, with no other numbers after them (showing astigmatism) you would most likely have 20/300 vision, meaning that what someone with 20/20 vision can see clearly at 300 feet, you would have to get up to 20 feet to see the object clearly, without corrected vision(glasses or contacts on). If you have a different prescription in each eye, or astigmatism, the visual acuity chart really doesn't mean anything. And it is realy just skimming the surface of your actual prescription no matter what.