Differential diagnosis of chronic visual loss are:
-intraorbital tumour
-refractive error
-cataract
-atrophic macular degeneration
-chronic uveitis
-bitemporal pituitary tumour
-corneal opacity
-diabetic retinopathy
-glaucoma
-cerebrovascular disease affecting the visual pathway
-brain tumour affecting visual pathway
-toxic optic neuropathy
-lens dislocation due to homocystinuria or Marfan Syndrome
-Hansen’s disease
-trachoma
-onchocerciasis
-xerophthalmia
-hypertensive retinopathy
-sickle cell
-radiation
-systemic lupus erythematosus
-intraorbital tumour
-refractive error
-cataract
-atrophic macular degeneration
-chronic uveitis
-bitemporal pituitary tumour
-corneal opacity
-diabetic retinopathy
-glaucoma
-cerebrovascular disease affecting the visual pathway
-brain tumour affecting visual pathway
-toxic optic neuropathy
-lens dislocation due to homocystinuria or Marfan Syndrome
-Hansen’s disease
-trachoma
-onchocerciasis
-xerophthalmia
-hypertensive retinopathy
-sickle cell
-radiation
-systemic lupus erythematosus