Detection of glaucomatous damage in patients with osteo-odontokeratoprosthesis
| Autor: | Marco Piccardi, Maurizio Taloni, Giovanni Falcinelli, Benedetto Falsini, Giancarlo Falcinelli |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Adult
Male medicine.medical_specialty Osteo-odonto-keratoprosthesis genetic structures media_common.quotation_subject Eye disease Posterior pole Glaucoma Transplantation Autologous Contrast Sensitivity Cellular and Molecular Neuroscience Corneal Opacity Postoperative Complications Ophthalmology medicine Electroretinography Contrast (vision) Autologous transplantation Humans media_common Aged Bioprosthesis medicine.diagnostic_test business.industry Middle Aged medicine.disease Sensory Systems eye diseases Surgery Transplantation Pattern Recognition Visual Evoked Potentials Visual Visual Field Tests Female sense organs business Research Article |
| Zdroj: | The British journal of ophthalmology. 79(2) |
| ISSN: | 0007-1161 |
| Popis: | BACKGROUND--Osteo-odontokeratoprosthesis (OOKP) is an autologous transplantation procedure in which the cornea is replaced by an optical cylinder glued to a biological support. Patients undergoing OOKP surgery may develop a secondary glaucoma whose diagnosis, by means of standard diagnostic procedures, is often doubtful. METHODS--In the present study pattern electroretinograms (PERGs), visual evoked potentials (VEPs), contrast sensitivity, and automated threshold perimetry (Humphrey 30-2) were evaluated in 19 OOKP treated patients with postoperative visual acuities > or = 0.8. Nine patients had had a preoperative secondary glaucoma, while the remaining 10 had no history of glaucoma and normal posterior pole. RESULTS--Results were compared with those obtained from either normal control subjects or from ordinary glaucoma patients. PERG amplitudes and contrast and perimetric sensitivities were reduced in both groups of OOKP patients when compared with normal controls. However, these losses were significantly greater in OOKP patients with glaucoma compared with those with normal posterior pole. VEPs were reduced, compared with controls, only in OOKP patients with glaucoma. These VEP losses were similar to those found in ordinary glaucoma patients. CONCLUSION--Among the tests employed, VEPs showed the best accuracy (79%) in discriminating between glaucomatous and non-glaucomatous OOKP treated eyes. The present results suggest a possible use of the VEP technique for detecting glaucomatous dysfunction after OOKP. |
| Databáze: | OpenAIRE |
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