開放隅角緑内障の黄斑部視野

Macular visual field in open angle glaucoma

　原発開放隅角緑内障59例88眼，低眼圧緑内障17例22眼，計76例110眼を対象として緑内障の黄斑部視野変化について検討し，次の結果を得た．

　1．黄斑部の視野異常はそれ以外の部位の視野変化の程度と強い相関を示した．

　2．黄斑部以外の視野変化にともなって，比較的早期から黄斑部視野の感度の低下を示す症例の多いことが確認された．

　3．黄斑部の異常の程度を判別する判別式を算出したところ，黄斑部視野の異常の程度と年齢，屈折，眼圧には関連は認められずMean Devia-tion　（MD），Pattern Standard Deviation　（PSD），黄斑外視野との間に強い関連が認められた．

　したがって，静的視野測定の際には比較的初期の症例でもMD, PSD等を考慮に入れて黄斑部の閾値検査を行うことが望ましいと考えられた．

We evaluated the central visual field in 110 eyes in 76 glaucoma patients. The series included 88 eyes with primary open angle glaucoma and 22 with low -tension glaucoma. We used an automated perime-ter (Humphrey) with modified central 30-2 pro-gram.

A high correlation existed between the visualfield changes in the macular and extramacular region. Along with deterioration in the peripheral visual field, many cases showed abnormalities in the macular visual field even in early stage of the disease. Discriminant analysis showed that the macular visual field changes positively correlated with mean deviation, pattern standard deviation and extramacular visual field. It was not correlated with age, state of refraction, or intraocular pres-sure.

The findings indicate the clinical usefulness of detailed macular visual field test in glaucoma, particularly in its early stage.

Rinsho Ganka (Jpn J Clin Ophthalmol) 42(9) : 1051-1054, 1988