Long Term Fluctuation of Visual Field in Glaucoma Patients.

Lee, Dong Ho; Choe, Young Joo; Hong, Young Jae

Original Article

Journal of the Korean Ophthalmological Society 1992;33(11):1093-1098.
Published online November 1, 1992.

Long Term Fluctuation of Visual Field in Glaucoma Patients.

Dong Ho Lee, Young Joo Choe, Young Jae Hong

Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea.

녹내장 환자의 장기 시야변동

홍영재(Young Jae Hong),이동호(Dong Ho Lee),최영주(Young Joo Choe)

Abstract

Visual field measurements are useful tool for diagnosis and management of glaucoma, and for evaluation of prognosis. But it has intratest and intertest variability, which interfere the precise interpretation of visual field changes. To examine the long term fluctuation, we conducted visual field measurements on three separate sessions in 44 glaucomatous eyes using Humphrey visual field analyzer. Each visual field results were compared with that of the following results. The long term fluctuation of visual field measurem-ent was between 1.85 and 8.81dB and in average 4.36 +/- 1.56dB. If one retinal location shows variaton greater than 8.81dB, automated visual fields must be interpreted cautiously and require confirmation and assessment of other clinical factors.

Key Words: Intratest and intertest variability;Interpretation of visual field;Long term fluctuation;Clinical factors