THE BELGIAN OPHTHALMIC ASSOCIATIONS
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This abstract is assigned to session BGS: Belgian Glaucoma Society
| Title | Screening for angle closure |
| Abstract Nr. | 124 |
| Purpose | Similarly to Primary Open-Angle Glaucomas, screening for “occludable” angle or angle-closure risk should be systematically performed in all persons forty years of age or older undergoing an eye examination. The term “angle-closure suspect” implies an anatomically predisposed eye. Pupillary block, plateau iris and less frequently lens induced and causes behind the lens are the main conditions that can precipitate angle closure. This diagnostic can only be made with certainty in one eye during a attack of acute congestive angle closure in the other. Therefore it can therefore often only be suspected prospectively. The potential for angle closure is based on the results of a body of tests including the flashlight test, the evaluation of the peripheral anterior chamber depth (van Herick technique), and above all the gonioscopy. Gonioscopy will show that, if 180° or more of the angle is closed without indentation ( iridotrabecular contact hiding the pigmented trabecular meshwork), the angle is “occludable”. Dynamic gonioscopy will assess whether the observed closure is appositional, reversible or if PAS are present. There is currently no evidence supporting the standard use of provocative tests for angle closure. The superiority of newer devices of evaluation of the anterior segment (ultrasound biomicroscopy and AS Optical Coherence Tomography,..) on the standard tests is still to be proven. Prophylactic peripheral iridotomy is indicated whenever there is a high risk for future angle closure in eyes predisposed to pupillary block. |
Author 1
| Last name | DETRY |
| Initials | M |
| Department | Cliniques Universitaires St Luc |
| City | Bruxelles |