part of part of has part has part has_part has quality has quality develops from develops from contributes to morphology of scleral cell opaque camera-type eye organ part sclera SCTID:181163006 GAID:911 XAO:0000183 FMA:58269 ZFA:0005563 EV:0100342 VHOG:0001274 Opaque fibrous outer layer of the eyeball[ZFA,Kardong,WP]. scleral capsule MA:0000280 UBERON:0001773 MESH:D012590 EMAPA:19027 Disease notes: implicated in rheumatoid arthritis. NCIT:C12784 AAO:0010354 Wikipedia:Sclera BTO:0001606 eye mesenchyme mesenchyme derived from head neural crest tunica fibrosa of eyeball