Every six months would be best. If your correctedvision decreases, please have it checked immediately.
最好是每半年一次,如果发现矫正视力下降,要及时来检查。
2
The reason that the pin-hole tested vision was lower than the refraction correctedvision was probably related with the high hyperopia and myopia.
针孔视力小于矫正视力的原因可能与远视和近视的程度偏高有关。
3
Objective to investigate the daily living vision and the correctedvision of the aged, and to analyze the reason of subnormal vision and the age specific eye diseases in the aged.