Resumen

FERNANDEZ ARGONES, Liamet; PILOTO DIAZ, Ibraín  y  MIQUELI RODRIGUEZ, Maritza. Bioultrasound experience in pigment dispersion syndrome and pigmentary glaucoma before and after laser iridotomy. Rev Cubana Invest Bioméd [online]. 2007, vol.26, n.3. ISSN 0864-0300.

The morphology of the iris and its relation to intraocular structures of the anterior segment in the pigment dispersion syndrome/pigmentary glaucoma, as well as Nd YAG laser iridotomy were studied through ultrasound biomicroscopy. Fourteen eyes from 14 patients, who presented with bilateral Krukenberg´s spindle without previous ocular problem (except for glaucoma) were studied and performed ultrasound biomicroscopy inmediately before and a week after laser iridotomy in order to evaluate the iris morphology, angle aperture, angle aperture distance and the presence of iridocrystalline, iridozonular and iridociliary contacts. Iridian concavity was detected in 66.7 % of the eyes whereas convexity was present in 33.3 % of them. Iridozonular contact was in 50 % f cases, reaching an important reduction of the contact area after laser iridotomy in all the cases, whereas iridociliary contact observed in 11.1 % of subjects did not show any variation. Laser iridotomy corrected iridian concavity and at the same time, it reduced the contacting area iridozonularm, thus helping the patients with iridian concavity. It is necessary to carry out a thorough study of favouring mechanisms of pigment dispersion when iridian concavity does not exist, and the possible treatment of this entity.

Palabras clave : Pigment dispersion syndrome; iris morphology; ultrasound biomicroscopy; laser iridotomy.

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