The Change of Contrast Sensitivity in Amblyopic Patient after Occlusion Therapy using ACV.

Park, Seong Bae; Han, Sueng Han; Lee, Jong Bok

Original Article

Journal of the Korean Ophthalmological Society 2003;44(10):2299-2304.
Published online October 1, 2003.

The Change of Contrast Sensitivity in Amblyopic Patient after Occlusion Therapy using ACV.

Seong Bae Park, Sueng Han Han, Jong Bok Lee

Department of Ophthalmology, Yonsei University College of Medicine, Yongdong Severance Hospital, Korea. shhan222@yumc.yonsei.ac.kr

약시환자에서 차폐치료 후 ACV를 이용한 대비감도의 변화

박성배 ( Park Seong Bae ) , 한승한 ( Han Seung Han ) , 이종복 ( Lee Jong Bog )

Abstract

PURPOSE
This study was designed to evaluate the change of contrast sensitivity under the photopic and mesopic illumination in amblyopic patient after occlusion therapy. METHODS: The subjects comprised 32 pediatric patients with strabismic or anisometropic amblyopia who were followed up at the clinic. We measured the best corrected visual acuity and contrast sensitivity under the photopic and mesopic illumination using ACV instrument before and three months after occlusion therapy. RESULTS: Mean best corrected visual acuity of amblyopic eyes before occlusion therapy was 0.54 +/- 0.21. In 17 eyes with improvement in best corrected visual acuity (mean: 0.21 +/- 0.05), there was improvement in photopic and mesopic contrast sensitivity (p<0.05). In 15 eyes without improvement in the best corrected visual acuity, there was no difference in photopic and mesopic contrast sensitivity (p>0.05). CONCLUSIONS: From above mentioned results, we can conclude that the contrast sensitivity using ACV instrument is responsive to short term (three months) occlusion therapy for amblyopic eyes.

Key Words: Amblyopia;Contrast sensitivity;Occlusion therapy