Cataract 16, Multiple Types, also known as cataract 16 multiple types, is related to cataract and contractures, pterygia, and spondylocarpotarsal fusion syndrome 1a. An important gene associated with Cataract 16, Multiple Types is CRYAB (Crystallin Alpha B). Affiliated tissues include eye and skeletal muscle, and related phenotypes are retinal dystrophy and developmental cataract