GROSS ANATOMY

Detailed explanation-1: -Circumference of an adult eyeball is 75 mm. Anteroposterior diameter of normal adult eyeball is 24mm. vitreous humor is a constituent of posterior segment.

Detailed explanation-2: -The eyeball is approximately spherical in shape with a diameter of about 2.3 cm.

Detailed explanation-3: -The eyeball is spherical in shape with even a diameter of about 2.3 cm. Most of the refraction for the light rays happens on the outer cornea surface. The eye is not shaped like a circular circle, but it is a two-piece fused structure, consisting of an anterior segment (front) and the posterior segment (back).

Detailed explanation-4: -The size of an emmetropic human adult eye is approximately 24.2 mm (transverse, horizontal) × 23.7 mm (sagittal, vertical) × 22.0–24.8 mm (axial, anteroposterior) with no significant difference between sexes and age groups.

Detailed explanation-5: -The eye is a very complex organ that is approximately 1 inch (2.54 cm) wide, 1 inch deep and 0.9 inches (2.3 cm) tall.