Is 4.5 a serious myopia?

Vision 4.5 is usually not considered severe myopia, but is generally related

to hyperopia. If the patient has shallow anterior chamber, small eyeball, sour eyeball, far vision and near vision, etc., through eye examination, it is found that the axial length of the eye becomes shorter, causing the imaging to fall behind the retina. If the patient has far vision loss but normal myopia, exotropia, visual fatigue, etc., through ophthalmic examination, it is found that the eye axis becomes shorter, things are imaged before the retina, at this time vision 4.5 is equivalent to myopia 100 degrees to 200 degrees, generally belongs to myopia, but does not belong to severe myopia, because severe myopia refers to myopia degree higher than 600 degrees.