Optometric mengapa pertama semak bingkai cermin mata

Untuk beastepbefore optometristtocheckyouroldglassesframesmeasuredthateveryprofessionalinoptometryoptometristmust. Thisismainlybecausebycheckingtheoldglasses, glassesfortheoptometryoperationstoinvestigateDai Jingshi.Andcontentofthesurveyinclude:


1, cermin: thespectacleincludesspherical, cylinderandaxis, dan tidak lama lagi;

2, opticalcenterlocation:thereisnophenomenonofopticalCentershifts;

Leg3, bingkai cermin, glassesframestructure;

4, visioncorrection;