Thinnest pa of lens is
Lens capsule is a thin, transparent, hyaline membrane surrounding the lens which is thicker over the anterior than the posterior surface. The lens capsule is thickest at pre-equator regions(14u) and thinnest at the posterior pole (3u) Ref;A.K.Khurana; 6th edition; Page no:179
Anterior pole
Posterior pole
Posterior capsule
Apex
Lens