Blepharophimosis-ptosis-epicanthus inversus syndrome (BPES) is a rare autosomal dominant disease. The cardinal feature of this disease is a complex eyelid/ocular malformation such as blepharophimosis, ptosis, epicanthus inversus and telecanthus. The horizontal shortening of the palpebral aperture can lead to amblyopia. It is caused by mutations in FOXL2 gene that is involved in palpebral and ovarian development. Some of the female patients have premature ovarian failure (POF) and this condition is classified as BPES type I. BPES with normal ovarian function is referred to as BPES type II.
