アトピー白内障の超音波生体顕微鏡検査所見

Ultrasound biomicroscopic findings in eyes with atopic cataract

　アトピー性皮膚炎に伴う若年者の白内障の症例で，網膜剥離を合併していない32例52眼について超音波生体顕微鏡検査（UBM）を行い，毛様体および網膜最周辺部を検査した。その結果，4例6眼（12％）に毛様体上皮剥離を検出した。毛様体上皮剥離の範囲が毛様体扁平部までが4眼，毛様体皺襞部までが2眼であり，このうち2眼は色素上皮裂孔が疑われた。白内障の程度と毛様体の異常所見との間には相関関係はなかった。UBMで色素上皮裂孔が疑われた1眼は，白内障術後に網膜剥離が発生した。アトピー白内障眼に対して術前にUBM検査を行うことは，術後の網膜剥離の発生を知るうえで有用である。

We examined the anterior ocular segment of 52 cataractous eyes of 32 patients with atopic dermatitis using an ultrasound biomicroscope (UBM) . The ages ranged from 12 to 37 years, average 23.2 years. There was no eye with clinically detectable retinal detachment. Detachment of the nonpigmented ciliary epithelium was detected by UBM in 6 eyes of 4 patients. It was located in the pars plicata in 2 eyes and extended to the pars plana in 4 eyes. Findings suggestive of break of the ciliary epithelium were present in 2 of these eyes. Retinal detachment developed following cataract surgery in one of the two eyes. The findings illustrate that ultrasound biomicroscopy may be of value in predicting retinal detachment following surgery for atopic cataract.