Among the 162 patients,319 near-sighted eyes,79 of 162 had comus (48.77%),149 of 319 near-sighted eyes had comus(46.71%). The results showed that there was a close relation between the degree of near-sightedness and the length of optical axis.

• 16 2人、319只近视眼中 ；出现近视弧形斑者 79人 (48.；77%25 )、149眼 (46