Does eyesight 4.9 calculate myopia

  Eyesight 4.9 whether calculate myopia to want to undertake judging according to check result(Eyeglasses).

Under normal circumstances, adult naked visual acuity of 5.0 is normal, while myopia is the parallel light from the outside, which cannot form a clear image on the retina after entering the refractive system of the eye. 4.9 visual acuity is closer to the normal value, a variety of reasons can cause this phenomenon, such as myopia, farsightedness, astigmatism, Cheap Prescription Glasses and so on.

And the developing adolescent period, the body and eye axis are in the development stage, do visual inspection will also appear deviation. So right now also cannot judge whether the patient is myopic through this examination only.

The patient with 4.9 vision suggests to do dilated pupil optometry examination to regular hospital, if the degree of myopia is detected after dilated pupil, it can be counted as myopia. But after optometry measure myopia degree, belong to basic normal condition. You need a high quality and Cheap Prescription Glasses Online and Eyeglasses Sale.