Evaluation of eyes with relative pupillary block by indentation ultrasound biomicroscopy gonioscopy

To investigate changes in anterior chamber angle configuration with indentation ultrasound biomicroscopy gonioscopy of relative pupillary block (RPB). Cross-sectional study. This study included 26 eyes of 26 patients with RPB. We determined angle opening distance 500 and angle recess area using inde...

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Bibliographic Details
Published in:American journal of ophthalmology 2004-03, Vol.137 (3), p.552-554
Main Authors: Matsunaga, Koichi, Ito, Kunio, Esaki, Koji, Sugimoto, Kota, Sano, Toru, Miura, Katsuya, Sasoh, Mikio, Uji, Yukitaka
Format: Article
Language:English
Subjects:
Aged
Anterior Eye Segment - diagnostic imaging
Biological and medical sciences
Cornea
Cross-Sectional Studies
Eyes & eyesight
Female
Glaucoma, Angle-Closure - diagnostic imaging
Gonioscopy - instrumentation
Humans
Investigative techniques of ocular function and vision
Investigative techniques, diagnostic techniques (general aspects)
Iris Diseases - diagnostic imaging
Male
Medical sciences
Microscopy
Pupil Disorders - diagnostic imaging
Ultrasonic imaging
Ultrasonography
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Summary:To investigate changes in anterior chamber angle configuration with indentation ultrasound biomicroscopy gonioscopy of relative pupillary block (RPB). Cross-sectional study. This study included 26 eyes of 26 patients with RPB. We determined angle opening distance 500 and angle recess area using indentation ultrasound biomicroscopy gonioscopy and compared a small-sized standard eye cup with a new eye cup with an area for inducing pressure. Indentation ultrasound biomicroscopy images documented concavity of the iris in eyes with RPB. Both the new and the small standard eye cups widened the anterior chamber angle significantly (P < .0001) without causing corneal damage. Angle changes were significantly greater for the new eye cup design. Indentation ultrasound biomicroscopy gonioscopy is a useful technique for observation and diagnosis of RPB. Using a small standard or the newly designed eye cup, the procedure can be performed easily and without causing corneal damage.
ISSN:0002-9394
1879-1891
DOI:10.1016/j.ajo.2003.08.048