Low Vision Evaluator（LoVE）による周辺部残存視野の評価

Evaluation of residual peripheral visual field using a Low Vision Evaluator

　中心視野が消失した末期緑内障14眼と，網膜色素変性症15眼の視機能を評価した。緑内障眼の視野はすべて湖崎分類Vbであった。視機能評価には，全視野刺激型光覚測定装置Low Vision Evalua—tor（LoVE）を使用した。Goldmann視野測定で残存する視野を立体角に換算した値（steradian）とLoVEスコアには高い相関があった（緑内障：r＝0.8437,p＜0.001，網膜色素変性症：r＝0.8415, p＜0.001）。同じような残存視野であっても，原因疾患によりその生理機能に差がある可能性が示された。

We evaluated the visual function in 29 eyes that had lost the central visual field. The series com-prised advanced glaucoma 14 eyes and retinitis pigmentosa 15 eyes. The visual field in glaucoma eyes was categorized as Vb after Kozaki's classification. We used a Low Vision Evaluator (LoVE) in assessing the visual function. The residual peripheral visual field by Goldmann perimetry was evaluated by the solid angle of resid-ual visual field, or steradian, as parameter. There were high correlations between the visual field and LoVE score in glaucoma (r=0.8437, p＜0.001) and retinitis pigmentosa (r=0.8415, p ＜0.001) . There were findings that the physiological function of residual field may differ between the two diseases.