Open AccessUltrasound biomicroscopic features of spherophakia
Author(s) -
Macken PL,
Pavlin CJ,
Tuli R,
Trope GE
Publication year - 1995
Publication title -
australian and new zealand journal of ophthalmology
Language(s) - English
Resource type - Journals
eISSN - 1440-1606
pISSN - 0814-9763
DOI - 10.1111/j.1442-9071.1995.tb00160.x
Subject(s) - ultrasound biomicroscopy , medicine , ultrasound , ophthalmology , angle closure glaucoma , pupil , glaucoma , ciliary processes , iris (biosensor) , laser , ciliary body , optics , radiology , physics , computer security , computer science , biometrics
Background: Spherophakia is an uncommon diagnosis. This is the first case report of spherophakia evaluated by ultrasound biomicroscopy. Methods: Ultrasound biomicroscopy is a new diagnostic technique developed by one of the authors and provides images with microscopic resolution of the anterior segment. A patient with spherophakia was evaluated by ultrasound biomicroscopy (Zeiss‐Humphrey, 50MHz) before and after YAG laser iridotomy. Results: Ultrasound biomicroscopic assessment revealed a shallow anterior chamber, a very steep anterior lens curvature, iridolenticular contact, elongated zonules, and an increased distance between the lens equator and the ciliary processes. Angle closure glaucoma was due to a pupil block mechanism. The pupil block was relieved by YAG laser iridotomy. Conclusions: Ultrasound biomicroscopy is a useful technique to confirm the diagnosis of spherophakia. The pupil block in spherophakia is relieved by YAG laser iridotomy.