A recurring allergic inflammation of the surface of the eye, common in boys and worse in warm, dry seasons.
Spring catarrh is a seasonal allergic conjunctivitis (boys, other allergies): intense itching, ropy discharge, photophobia; cobblestone bumps on the upper lid; it tends to settle with age.
Cataract
Clouding of the lens causing painless, progressive loss of vision.
Glaucoma
Optic-nerve damage, usually linked to raised intraocular pressure.
Diabetic Retinopathy
Microvascular damage to the retina from long-standing diabetes.
Conjunctivitis
Inflammation of the conjunctiva — the common 'red eye'.
Refractive Errors
The eye fails to focus light sharply on the retina.
Retinal Detachment
Separation of the retina from the underlying layer — an eye emergency.