True and false myopia showed far vision loss, near vision. Pseudo-myopia as functional, mostly occurred in young people, vision can be in a few weeks or 1 to 2 months decline, the appropriate rest can be a certain degree of recovery. True myopia as organic change, can not be natural recovery.
Differential diagnosis methods are as follows:
1, ciliary muscle paralysis method: the use of cycloplegic drugs to adjust the relaxation of the ciliary muscle relaxation, so that the eye in a static refractive state, and then check the visual and optometry to determine. With 1% atropine eye drops, 1 to 2 times a day for 3 to 4 days; or 2% after the equine or 0.5% tropicamide every 5 to 15 minutes a total of 6 times. Eyes, respectively, after the examination of small hole under the uncorrected visual acuity, if the mydriatic vision after the true myopia, visual acuity increased pseudo-myopia; optometry with myopic refraction is true, no myopia diopter is false. This is the most reliable method of differential diagnosis.
2, cloud law: let the patient at the same time wearing a + 3.0D spherical mirror, see distant objects for 3 minutes, and then remove the right lens, immediately check the uncorrected vision, vision progress for the pseudo, not progress for the true; Check the left eye. This method is not very precise.
3, dynamic retinoscopy: (1) do not mydriasis, first check the eyes far, near the eyes of vision. Distant vision is poor, near vision and no other visual impact of eye disease for the identification of the object; dial vision is the world’s First Adjustable Eyeglasses by BulbHead,buy dial vision on official site.
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