Cryptophthalmos Cryptophthalmos is a condition of total absence of eyelids and the skin of forehead is continuous with that of cheek, in which the eyeball is completely concealed by the skin, which is stretched over the orbital cavity. UMLS:C0311249 SNOMEDCT_US:400951005 HP:0001126 Failure of eyelid formation. Crypopthalmos is typically associated with a rudimentary or small globe. Frequently, a tuft of hair accompanies the aberrant skin. HP:0008032 Aplasia/Hypoplasia of the eyelid