Measurement of Velocity of Upper Eyelid Movement Using Video Camera in Patients with Blepharoptosis.

Lee, Sang Yeul; Kim, Tae Hyung; Jang, Jae Woo; Lew, Helen

Original Article

Journal of the Korean Ophthalmological Society 1999;40(6):1451-1458.
Published online June 1, 1999.

Measurement of Velocity of Upper Eyelid Movement Using Video Camera in Patients with Blepharoptosis.

Sang Yeul Lee, Tae Hyung Kim, Jae Woo Jang, Helen Lew

¹The Institute of Vision Research, Yonsei University College of Medicine.
²Department of Ophthalmology, Yonsei University College of Medicine.

안검하수 환자에서 비디오카메라를 이용한 상안검운동의

이상열(Sang Yeul Lee),김태형(Tae Hyung Kim),장재우(Jae Woo Jang),유혜린(He Len Lew)

Abstract

Levator function test is one of the most useful methods of diagnosis and evaluation of blepharoptosis. Because levator function test is more difficult to measure and unreliable in children or uncooperated patients, new method evaluating blepharoptosis is needed in these patients. Therefore, we measured lid movement velocity and the correlation between levator palpe-bral muscle function and lid motility velocity was evaluated. We videotaped the eyelid movements using videocamera in 66 eyes, 33 patients before operation, and analyzed the eyelid movement velocity and com-pared the eyelid movement velocity with levator palpebral muscle function. Levator palpebral muscle function was directly related to the mean velocity of eye opening, correlation coefficiency being 0.687(p<0.05). Therefore, we conclude that the mean velocity of eye opening using video camera can be useful for evaluation of blepharoptosis in uncooperated patients.