The sclera is thinnest at
The sclera is thickest near the optic nerve, where it is approximately 1 mm in thickness The sclera is thinnest (0.3 mm) posterior to the rectus muscle inseions and thickest (1.0 mm) at the posterior pole near the optic nerve head. Thinnest at the inseion of extraocular muscles (0.3 mm) Reference: khurana 6th edition pg 788
Limbus
Equator
Optic nerve
Posterior to attachment of superior rectus
Anatomy, Development and clinical examination