Tag: ocular structures

December 5, 2025 / Mohammed looti

ZONULES

Introduction and Definition of Zonules The zonules of Zinn, formally known as the suspensory ligaments of the lens, constitute a critical anatomical structure within the human eye, playing an indispensable role in the mechanism of visual focus, or accommodation. These microscopic, filamentous structures bridge the gap between the periphery of the crystalline lens capsule and […]

November 12, 2025 / Mohammed looti

SCLERA

Introduction and Definition of the Sclera The sclera, also referred to formally as the sclerotic coat, constitutes the dense, opaque, white outer layer of the eyeball. This formidable structure serves as the principal protective casing for the delicate internal components of the eye, encompassing approximately the posterior five-sixths of the ocular surface. Its primary composition […]