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Theo Eyewear Northcliff Johannesburg
eye diseases johannesburg northcliff

Diseases of the Eye

Our clinic provides comprehensive, ongoing healthcare for individuals and families of all ages. Our team focuses on preventive care, early diagnosis, and managing chronic conditions in a compassionate, personalized manner. Whether it’s a routine check-up or long-term treatment plan, we’re here to support your health at every stage of life - with a focus on trust, continuity, and quality care.

List of Eye Diseases

Browse through our list of articles about dozens of eye diseases. Get the basics about symptoms, diagnosis, and treatment — or go in depth to see all the details.

Amblyopia

An uncorrectable loss of vision in an eye that appears to be normal

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Artery Occlusion

Occurs when a retinal artery becomes blocked

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Basal Cell Carcinoma

A type of skin cancer that generally occurs on the face or neck

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Blepharitis

A common inflammatory condition that affects the eyelids

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Cataract

A clouding of the natural lens of the eye

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Central Serous Chorioretinopathy

A small break that forms in the pigment layer of the retina

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Chalazion

A lump in the eyelid caused by obstruction of a meibomian gland

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Chemical Burn

Quick reactions can make the difference

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Choroidal Neovascular Membrane

A problem that is related to a wide variety of retinal diseases

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Cogan's Dystrophy

A disease that affects the cornea

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Colour Blindness

The decreased ability to see color or differences in color

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Computer Vision Syndrome

Eye-related problems caused by prolonged computer use

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Conjunctivitis

An infection of the outer-most layer of the eye

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Corneal Ulcer

Forms when the surface of the cornea is damaged

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Cystoid Macular Oedema

Occurs as a result of disease, injury or eye surgery

Cytomegalovirus

Related to the herpes virus and is present in almost everyone

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Dacryocystitis

An infection of the tear sac at the inner corner of the eyelids

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Diabetic Retinopathy

A disease that occurs due to a deficiency of insulin

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Dry Eye Syndrome

A problem with the quality of the tear film lubricating the eyes

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Ectropion

A sagging lower eyelid that leaves the eye exposed and dry

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Entropion

An eyelid that turns inward, typically affecting the lower lid

Epi-retinal Membrane

A cellophane-like membrane that forms over the macula

Episcleritis

An inflammatory condition of the eye’s episclera

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Flashes and Floaters

Tiny bits of vitreous gel or cells that cast shadows on the retina

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Foreign Body

An object in your eye that shouldn’t be there

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Fovea

The part of the eye responsible for our central, sharpest vision

Fuchs' Corneal Dystrophy

An inherited condition that affects the inner layer of the cornea

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Glaucoma

A disease caused by increased intraocular pressure (IOP)

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Headaches

Headaches may occur for any number of reasons

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Herpes Simplex

A very common virus that can affect the eye

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Herpes Zoster

Is caused by the same virus responsible for chicken pox

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Hyphaema

A term used to describe bleeding in the anterior chamber

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Iritis

An inflammatory problem of the iris, the coloured part of the eye

Keratoconus

A degenerative disease of the cornea that causes a cone-like shape

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Macular Degeneration

A degenerative condition of the macula (the central retina)

Macular Hole

A problem that affects the very central portion of the retina

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Naevus

A flat, benign, pigmented area that may appear inside the eye

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Neovascularization

New blood vessel growth on the cornea

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Neovascularization of the Optic Nerve Head

New blood vessel growth on the optic nerve head

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Ocular Histoplasmosis Syndrome

Caused by a fungus commonly found in certain dust and soil

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Ocular Rosacea

Associated with a chronic skin condition known as acne rosacea

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Optic Neuritis

Refers to swelling or inflammation of the optic nerve

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Pinguecula

A benign, yellowish growth that forms on the conjunctiva

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Posterior Capsule Opacification

Clouding of the lens capsule after cataract surgery

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Pterygium

A raised, wedge-shaped growth of the conjunctiva

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Ptosis

A drooping of the upper eyelid

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Recurrent Corneal Erosion

A condition affecting the outermost layer of corneal cells

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Retinal Tear and Detachment

Occur when there is traction on the retina by the vitreous gel

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Retinal Vein Occlusion

Occurs when circulation of a retinal vein becomes obstructed

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Retinitis Pigmentosa

A disease that causes the eye’s rod photoreceptors to degenerate

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Retrolental Fibroplasia

A potentially blinding condition affecting the retina of newborns

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Scleritis

An inflammatory disease that affects the sclera

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Subconjunctival Haemorrhage

Occurs when a blood vessel under the conjunctiva bleeds

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Temporal Arteritis

An inflammatory condition affecting the eye’s blood vessels

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Uveitis

Inflammation of the eye’s structures responsible for blood supply

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Vitreous Detachment

Occurs when the vitreous pulls from the inside surface of the eye