Itching, flaking, or crusting of the scalp may be caused by: 1  Cradle cap, an oily, yellow crusting on a baby's scalp. 2  Dandruff, a shedding of the skin on the scalp that leaves white flakes on the head, neck, and shoulders. 3  Head lice, tiny wingless insects that cause itching and raw patches on the scalp. Head lice are most common in school-age children. Ringworm, a fungal infection of the outer layer of the scalp and in the hair. It usually causes a rash made up of circular patches with raised, red edges that resemble worms.
heteronymous hemianopia. Also found in: Dictionary, Thesaurus. Related to heteronymous hemianopia: bitemporal hemianopsia. hetÂ·erÂ·onÂ·yÂ·mous hemÂ·iÂ·anÂ·oÂ·piÂ·a. attitudinal hemianopia involving the upper field of one eye and the lower field of the other; or a binasal or bitemporal hemianopia.
Fuchs' heterochromic iridocyclitis. A chronic, idiopathic, non-granulomatous anterior uveitis characterized by heterochromia, often complicated by cataract which then leads to blurred vision, the main complaint.It is occasionally bilateral; in this case there is no heterochromia.The condition occurs in about 4% of all cases of uveitis.uchs' heterochromic iridocyclitis. A chronic, idiopathic, non-granulomatous anterior uveitis characterized by heterochromia, often complicated by cataract which then leads to blurred vision, the main complaint.