[Precise determine the position of the opposite upper lid after correcting the congenital unilateral ptosis and their relationship].
OBJECTIVE
The good results should be obtained after correction of the congenital unilateral ptosis for bilateral eyes.


METHODS
A formula was made and determined the position of the opposite upper lid according to Hering's law.


RESULTS
Thirty-two patients with congenital unilateral ptosis were operated. The correct rate is 94.12% according to the formula and the control is 66.67%.


CONCLUSIONS
The position of the opposite upper lid should be determined after the ptosis eye corrected before operation in order to obtain a good results.
Sun
H
H
Plastic Surgery Hospital, Hangzhou 310014, China.
Song
J
J
Yao
J
J
D000293:Adolescent; D000328:Adult; D000886:Anthropometry; D019882:Blepharoplasty / Q000379:methods; D001763:Blepharoptosis / Q000151:congenital* / Q000601:surgery*; D002648:Child; D005143:Eyelids / Q000033:anatomy & histology*; D005260:Female; D006801:Humans; D008297:Male; D008433:Mathematics