Abstract
Abstract: :
Purpose:The Orbscan II slit scanning system was used to evaluate anterior chamber depth and iridocorneal angle in normal eyes. Methods:408 patients were included and devided into 7 age groups: 10-19 years (n=34; m:f=11:23), 20-29 years (n=93; m:f=53:40), 30-39 years (n=74; m:f=51:23), 40-49 years (n=68; m:f=46:22), 50-59 years (n=63; m:f=38:25), 60-69 years (n=53; m:f=33:20) and 70-79 years (n=23; m:f=18:5). Based on Orbscan II slit scanning system the following parameters were assessed two times a day: anterior chamber depth and iridocorneal angle at 0°, 45°, 90°, 120°, 135°, 180°, 225°, 270° and 315°. For calculating the normal values mean value and standard deviation of all paramteres were provided. Statistical analysis was performed by t-test. Results:The difference in anterior chamber depth and iridocorneal angle at 0°, 90°, 120°, 135°, 180°, 225° and 270° between male and female was statistically significant (p<0.01). Furthermore, in the group of males the anterior chamber depth and iridocorneal angle at 0°, 45°, 90°, 270° and 315° showed a significant age related difference (p<0.01). There was also a significant age related difference in anterior chamber depth and iridocorneal angle at 45° and 90° in the group of females (p0.7; p=0.000). Conclusion:The Orbscan II slit scanning system provides age and sex related reference datas of anterior chamber depth and iridocorneal angle from normal eyes. These normal values are useful for comparison with e.g. glaucoma eyes.
Keywords: 318 anterior segment • 317 anterior chamber • 356 clinical (human) or epidemiologic studies: systems/equipment/techniques