<prompt> Sclera is thinnnest at?LimbusInsertion of rectus musclesEquatorPosterior pole  <response>: ANSWER: B Insertion of rectus musclesREF: Color atlas of strabismus surgery: strategies and techniques by Kenneth W. Wright, Sonal Farzavandi, Lisa Thompson page 111, Pediatric Ophthalmology by P.K. Mukherjee page 721Attachments of recti are on the thinnest part of the scleraUnlike other ophthalmic surgery, scleral passes in strabismus surgery are usually performed behind a rectus muscle insertion in the thinnest part of the sclera approximately 0.3 mm thickNote:Thinnest part of lens is posterior poleThinnest part of sclera is behind the insertion of rectus muscleThinnest part of retina is fovea centralis 