DR. ZIAUL HAQ YASIR

Abstract

Ocular biometry is essential for understanding ocular growth and pathogenesis. Iris thickness (IT), a known risk factor for angle closure glaucoma. IT was evaluated in healthy eyes using AS-OCT. IT and iris volume was measured with the room ‘light on’ (LON) and ‘light off’ (LOFF) using Image J software. IT in the nasal and temporal iris was measured at 500 µm (IT500) and 750 µm (IT750) from the scleral spur (SS). We included 100 eyes of 50 healthy adult. The mean age was 41.7 ± 14.5 years & 56 were male. The refractive status was: emmetropia (35 eyes), mild/moderate myopia (33 eyes), high myopia (17 eyes) and hyperopia (15 eyes). The IT750 with LON was significantly more than IT500 both nasally (P = 0.03) and temporally (P < 0.001). . IT was thicker in males and variation of IT by refractive error was significant but not by age. ACD decreases with age.. ACW was not affected by age or illumination. baseline iris thickness could be used to compare in eyes with angle closure glaucoma