Doctor insights on:
Do Diopters Measure Nearsightedness
Yes: Nearsighted eyeglass (or contact) correction will be denoted on the prescription as a (-) power and a number (e.g. -2.75) which would be a nearsighted person with a power of minus 2.75 diopters. ...Read more
How can I identify whether I have axial or pseudo-myopia? Is pseudo-myopia is restricted upto some power(diopter)?
Eye exam will tell.: Axial myopia: eye length is too long for distance light rays to be focused on retina. Other common cause of this is a cornea that is too curved + over focuses the rays short of the retina. Pseudo myopia likely refers to a spasm of the inner lens over focusing the rays - detectable with drops that paralyze focusing muscle. No limit to level of myopia. ...Read moreSee 1 more doctor answer
Myopia: Nearsightedness or myopia is very common. It is not uncommon for us to see patients who are -10 diopters or more. Be sure you have a dilated retinal exam every year and you know what retinal detachment signs look like (burst of black floaters, flashing lights, new floaters, curtain coming down over your vision); consider polycarbonate glasses for protection especially during sports. ...Read moreSee 1 more doctor answer
How to stop the progression of myopia? I'm 28 years old, male, office work, -7 diopters with astigmatism
Any risk in a myopic pregnant woman (-8 diopters) getting retinal detachment from pushing during delivery?
20 feet: All lanes are corrected for distance to be equivalent to 20 feet which is the defined standard. In metric countries it is 6 meters. The snellen fraction 20/ over something, uses the 20 foot standard as part of the fraction. It is arbitrary but since a universal standard was needed for the optical industry, in the usa 20 feet is adopted for all to measure by. ...Read more
Trouble Seeing Far: Myopia occurs in many people and means you have problems seeing far away but usually don't have trouble reading or seeing things closer to you. Typically it can't be prevented and occurs when the eye becomes a bit more oval or longer in shape. Any changes in vision should be evaluated by a doctor to be sure that it's not something more severe or dangerous. For example, diabetes can affect vision. ...Read moreSee 2 more doctor answers
No : What happens as one approaches middle age is the focusing power of your eye declines. So that people, even nearsighted ones, can have difficulty focusing at objects up close. This is called presbyopia. It is often confused with developing farsightedness--but the 2 conditions are different. ...Read more
Reading: This is a misconception that is not true. ...Read more
Get glasses: I am guessing you mean left is -0.75 and right is -1.25 which are the lens powers to correct your relatively minor degree of nearsightedness. If you want visual clarity you should get glasses or contacts to correct this. If these refer to something else, then rephrase the question please. ...Read more
Nearsightness: Is some cases when you are staring at something for long periods of time, it can cause lightheadedness. Nearsightedness will also cause headaches if not corrected. See you eye doctor to get your eyes checked and corrective lenses fit to your vision levels. Good luck and feel better. ...Read more