The given stem points to a diagnosis of Albinism. Albinism is a group of inherited disorders that results in little or no production of the pigment melanin, which determines the color of the skin, hair and eyes. In terms of the colour of the eyes: In albinism symptoms can include light skin or changes in skin color; very white to brown hair; very light BLUE to brown eye color that may appear RED in some light and may change with age; sensitivity to sun exposure; and increased risk of developing skin cancer. It is caused due to the deficiency of the enzyme Tyrosinase.
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Clear case of albinism so answer should be tyrosinase