The proportion of myopic or nearsighted individuals among the whole world population is on the rise in recent years. A testimony is that American eye care professionals found that myopia is more common in the United States now than it was 30 years ago. And it is estimated that approximately one third of the world’s population is affected by nearsightedness. So, myopia as a basic form of visual refractive error has become a major risk to human beings’ eyesight. Lots of activities will be affected by this condition. The typical symptom of nearsightedness is a difficulty in seeing objects in the distance. This explains why eyeglasses which are capable of correcting myopia are some times called distance glasses. With such a difficulty, myopic students and adults might squint or feel extremely fatigued during study and other activities like driving. In some cases, headaches and eye strain will be experienced.
Modern lifestyles may have contributed greatly to the high occurrence rate of myopia. But there have not been some preventable approaches that are commonly agreed and recognized by both the average and eye care experts. This makes finding the right solutions to this condition extremely important. If prevention remains highly impossible, the best practice is to find remedies. Present now, the commonest remedy to myopia is distance glasses or myopia glasses. Myopia occurs when the eyeball is slightly longer than usual so that light rays entering the eyes can not be focused properly on retina. And myopic glasses take use of prescription lenses are supposed to help the light rays focus properly, in which case normal, clear vision is “restored”. And myopia eyeglass lenses come in different powers according to the degrees of severity of the condition.
Except for distance glasses, there are actually other solutions to myopia, including mainly prescription contact lenses and eye surgeries. Contact lenses function in a similar way to prescription eyeglasses that they both utilize powered lenses. But refractive eye surgeries like PRK and LASIK will remove certain amount of corneal tissues and generate a permanent correction.