###Rationale: (Refer: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 140) The thickest pa of the sclera - Near the optic nerve (at the posterior pole)The thinnest pa of the sclera- Near the inseion of extraocular muscles ref khurana 6th edition pg 566

###Answer: OPTION B IS CORRECT.
###Question: Sclera is thinnest at
###Options:
A. Near the optic nerve
B. At inseion of the extra ocular muscles
C. Around the limbus
D. Nasally
