Must pay attention as follows specifically wholesale sunglasses
:The mirror holder stability is friends with, generally is not suitable the non-frame mirror holder which selects easily to distort.The picture frame must have the enough vertical height, when side shears Yi Ba regards near part to cut off. Generally the picture frame should highly many in 35mm.The mirror circle nose inside region holds the gradation area sufficiently, generally is not suitable uses nose inside base region ascent big Lei Pengjia.The mirror holder must have Stipule who can adjust the vertical height.Mirror holder and eye distance, in does not touch under the eyelash premise should as far as possible small. After choosing the good mirror holder, but should also let the patient put on the mirror holder to make the appropriate readjustment:1 conforms to the face shape: Guaranteed that before the picture frame, the surface radian tallies with the wearing forehead radian.2 mirror holders are balanced: The adjustment mirror foot's angle, enables the mirror holder to be possible to wear straight on the face.3 mirror holder front rakes: The adjustment causes it maintains between 10-15 degrees, but cannot touch the face.4 apex distances: The adjustment nose request causes the lens apex distance to reduce as far as possible, but cannot touch the eyelash.5 mirror leg length: The adjustment mirror leg length causes the mirror holder to have one's eyes tested and wear glasses stably, and feels comfortably.Fourth, surveys accurately. Is apart from including the plane survey pupil with the vertical survey matches the mirror altitude.What the plane survey should pay attention is patient's single discount sunglasses
eye pupil distance, the vertical survey pupil high must survey the simple eye data. Manifests the different customer's personalized design fully. Fifth, conforms to national standards processing grinding. Regarding has shortsighted or the hyperopia middle-aged person and old person also meets the presbyopia, possibly needs two to three eyeglasses, looks far, looks near, but also some settles on the distance, 23 eyeglasses traded every day trade are very troublesome, spend many, for this reason many middle and old aged friends have also chosen the pair The light eyeglasses, the bifocal lens one divides into two, place above looks far, underneath has small lens to use for to look near, although solved looked that nearly with looked at the far question, but because the lens number of degree change was up and down oversized, did not have the cushion, the cause far and near physical image to have the jump phenomenon, moreover could also not solve looked Middle distance question.