<prompt> Thinnest poion of sclera ?Anterior to rectus muscle inseionPosterior to rectus muscle inseionPosterior poleLimbus  <response>: Ans. is.b, Posterior to rectus muscle inseion Thinnest poion of sclera- Posterior to inseions of rectus muscle. Thickest poion of sclera- Posterior pole. 