Sickle cell anaemia (sickle cell disease) is a disorder of the blood caused by inherited abnormal haemoglobin (the oxygen- carrying protein within the red blood cells). The abnormal haemoglobin causes distorted (sickled) red blood cells.
The word “albinism” may make you think of light skin or hair. Albinism is a group of inherited disorders characterised by little or no melanin production. Most people with albinism have pale skin, eye conditions and are sensitive to the sun.
But albinism also can affect a person's eyes. When it does, it's called ocular albinism, a rare eye condition that happens much more often in boys and men than in girls or women.