Purpose. To determine the suitability of RNFL examination in myopic eyes with glaucoma or ocular hypertension by means of Scanning Laser Ophthalmoscopy (SLO). Methods. 111 consecutive patients (age 31-72 yrs. retraction -1 . -16 dptrs), with [OP 2] mmHg, clear senses, peripapillary atrophy not wider than one disc diameter, and without severe myopic conus, underwent RNFL examination by means of Argon-blue (488 nm) SLO. The following parameters were evaluated: suitability of the examination; RNFL pattern (normal, slit, wedge and diffuse defects); refraction; peripapillary atrophy. Three trained observers evaluated the images of each patient, recorded onto a standard U-Matic videorecorder. One eye of each patient was randomly chosen for study purposes. X2 test was used to calculate associations between suitability of RNFL examination and the other ocular parameteis. Results. RNFL examination was possible in 87 out of 91 eyes (96%) with myopia up to 6 dptrs, and in 15 out of 20 eyes (75%) with myopia ranging 6-16 dptrs. A normal RNFL pattern was observed in 64 cases (57.7%), slit defects in 2 (1.8%), wedge defects in 13 (11.7%), diffuse defects in 23 cases (20.7%). Suitability of examination was negatively associated with increasing myopic retraction (p = 0.0009) and a 360° peripapillary atrophy as wide as one disc diameter (p = 0.00000). Conclusions. RNFL examination of myopic eyes by means of SLO was possible in most of the eyes with a refraction up to 16 dptrs, thus allowing early and advanced RNFL defects to be detected in eyes with ocular hypertension or glaucoma.
|Titolo:||Retinal nerve fiber layer examination in myopic eyes by scanning laser ophthalmoscopy|
ROSSETTI, LUCA MARIO (Penultimo)
ORZALESI, NICOLA (Ultimo)
|Settore Scientifico Disciplinare:||Settore MED/30 - Malattie Apparato Visivo|
|Data di pubblicazione:||1996|
|Appare nelle tipologie:||01 - Articolo su periodico|