Explaining Nearsightedness
Myopia is when the eyes focus incorrectly, making faraway targets appear smeared.
A myopic man sees near objects clearly, while targets in the distance are cloudy. Therefore, someone with myopia tends to squint when viewing far away objects. This characteristic is the basis of the word “myopia,” which comes from two Greek words: myein, meaning shut, and ops, meaning eye.
Jaeger charts are used to assess a person’s near vision. A Snellen chart will be better for assessing somebody’s far-off vision. A myopic person will not be able to view the image from a Snellen chart with great clarity and so the letters looked fuzzy and unfocussed.
Nearsightedness is caused by the actual length of the eye being longer than the optical length. So you often see this in a rapid growing eye in a child undergoing rapid growth. When a person’s growth stops – around the mid twenties – they tend to be less shortsighted. If the actual length of the eye is too large, the light rays focus too soon and the image becomes fuzzy. So, the times of rapid growth are the times when people are most likely to become nearsighted.
Generally, people with Nearsightedness will have a family history of the disease and are likely to develop the condition. If the condition develops, then the most likely outcome will be a healthy normal eye in the mid tweties. Sometimes, there are a few patients who suffer from a retinal detachment.
If you are nearsighted, then you are likely to need to the local opticians and see whether I could get prescription spectacles online. Just go to an actual optician for the prescription and request a copy of the prescriptions.
