<unk>  can be defined as retinal changes due to blood vessel damage in the eye of a person with a background of<unk> <unk>  disease. It can likely progress to loss of vision in late stages due to vitreous hemorrhage or retinal detachment.<unk> <unk>  disease is a structural red blood<unk>  disorder leading to consequences in multiple systems. It is characterized by chronic red blood<unk>  destruction, vascular injury, and tissue ischemia causing damage to the brain, eyes, heart, lungs, kidneys, spleen, and musculoskeletal system. People affected by<unk> <unk>  disease are commonly of African or Asian descent. Emigration patterns towards the Western Hemisphere have led to increased numbers of persons affected by<unk> <unk>  disease in regions where it was previously uncommon. Knowledge and understanding of<unk> <unk>  disease and its management are now increasingly relevant in areas such as the European Union. At a young age, a great proportion of people living with<unk> <unk>  disease can develop retinal changes.<unk> <unk>  disease consists of several subtypes; however, the Haemoglobin type C (HbSC) subtype carries the gravest prognosis for<unk>  and vision changes. Regular retinal examinations can aid in early detection and treatment, thus reducing the impact of the condition and the risk of vision loss. Development and progression of<unk>  can be favorably modified through management of the underling<unk> <unk>  disease. Treatment of the general disease can ameliorate its systemic effects.
Sickle cell retinopathy
Autoimmune retinopathy
Diabetic retinopathy
Hypertensive retinopathy
Radiation retinopathy
Chloroquine retinopathy
Photic retinopathy
Autoimmune optic neuropathy