未矫正近视、远视和散光是视力问题的主要原因。
Uncorrected cases of nearsightedness, farsightedness and astigmatism are the leading cause of vision problems.
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。
The reason that the pin-hole tested vision was lower than the refraction corrected vision was probably related with the high hyperopia and myopia.
重点在于矫正视力缺陷，例如近视，远视，老花眼和角膜曲率。
The focus is on the correction of vision defects such as myopia, hyperopia, presbyopia, and corneal curvature.
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