The Ability of canning Laer Ophthalmocopy to Identify Variou Glaucomatou Optic Dik Appearance Original Reearch Article

Purpoe: To compare four ditinct glaucomatou dik appearance uing canning laer ophthalmocopy and determine the ability of a previouly decribed dicriminant analyi to detect glaucomatou damage for each group. Method: Two thouand three hundred eighty-eight tereocopic optic dik photograph of 2,388 ubject with glaucoma or upicion of glaucoma were reviewed to elect four pure glaucomatou optic dik type. Twenty-three topographic, volumetric, and morphometric canning laer ophthalmocopic variable from one optic dik of each elected ubject were compared. Difference between the group were evaluated uing an analyi of variance and the Pearon chi-quare tet. Reult: Forty-four focal ichemic dik, 38 myopic glaucomatou dik, 30 enile clerotic dik, and 28 dik characterized by generalized cup enlargement were tudied. ignificant intergroup difference were found for the majority of the evaluated optic dik variable. The accuracy with which the dicriminant analyi model wa able to detect dik with glaucomatou viual field damage wa 93.2% for focal ichemic dik, 81.6% for myopic dik, 66.7% for enile clerotic dik, and 78.6% for dik with generalized cup enlargement. Concluion: By comparing mean value for certain optic dik variable, canning laer ophthalmocopic optic dik aement can ditinguih group of dik with pecific appearance. However, the ability of preently available oftware to detect glaucomatou damage varied coniderably with dik appearance. Expert clinical optic dik evaluation remain an important part of the aement of patient upected of having glaucoma, although refinement of computerized canning laer ophthalmocopic dik aement may eventually make thi eaier.