ANATOMY

GENERAL ANATOMY

EMBRYOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Sutures are not present in which zone of lens
A
Embryonic
B
Adult
C
Infantile
D
Fetal
Explanation: 

Detailed explanation-1: -The ends of the fibres in each layer flatten and combine with each other to form a lens suture, with a Y-shaped suture in front of the nucleus and an offset Y-suture behind the nucleus (figure 5). Lens regeneration in human may reproduce the normal structure of the lens.

Detailed explanation-2: -As the secondary lens fibers elongate from the equator, they form Y-shaped sutures by meeting anteriorly and posteriorly during fetal growth. The secondary lens fibers eventually grow to form the adult nucleus with new layers of lens fibers forming the lenticular cortex.

Detailed explanation-3: -Sutural cataracts are congenital lens opacities that affect the Y sutures of fetal lens nucleus and usually very slow to progress. Sutural cataracts cause minimal visual disturbance and usually do not require surgical intervention.

Detailed explanation-4: -Lens sutures represent junctions between the tips of the lens fibers that make up the lens cortex. Suture lines usually form an upright “Y” anteriorly and an inverted “Y” posteriorly.

There is 1 question to complete.