Differential diagnosis of hypochromic heterochromia:
(1) Waardenburg-Klein syndrome
(2) Bourneville syndrome (tuberous sclerosis hypopigmented iris spot)
(3) Bremer syndrome (dysraphicus syndrome)
(4) Parry-Romberg syndrome (facial hemiatrophy)
(5) iris coloboma
(6) iris atrophy
(7) infiltration of the iris by a hypopigmented tumor
(8) hypomelanosis of Ito syndrome
(9) Horner’s syndrome
(10) Posner-Schlossman syndrome (glaucomatocyclitic crisis)
(11) Fuchs syndrome (heterochromic cyclitis syndrome)
(12) Conradi syndrome (epiphyseal congenital dysplasia)
(13) Chediak-Higashi syndrome
(14) unilateral iritis and anemia
(15) congenital (sporadic or familial)
