Albinism is an inherited pigmentary disorder caused by pathogenic mutations leading to reduced melanin production or dysfunctional melanin transport within melanocyte-containing cells. It can manifest either as syndromic/non-syndromic oculocutaneous albinism (OCA), or isolated ocular albinism (OA).

Infantile nystagmus syndrome (INS) is an umbrella term used to describe different forms of infantile nystagmus (with or without sensory defects) characterised by an increasing slow phase velocity.

Albinism is an inherited condition that affects the pigmentation of the eyes, hair and skin. Patients often have lack of pigmentation in these structures, resulting in a variety of symptoms.