Ophthalmology Archives « Page 4 of 9

Night Blindness – Causes

Night blindness (nyctalopia) is a condition in which there is impaired vision in dim light. The causes of night blindess are: Conditions affecting the functioning of rods (as

Ophthalmology

Anterior Ischemic Optic Neuropathy (AION) – Etiology, Clinical features, Investigations, Treatment

Anterior Ischemic Optic Neuropathy is a condition in which there is segmental or total infarction of the anterior part of the optic nerve Etiology: AION occurs due to

Acronyms

AION – Acronym

AION stands for: Anterior Ischemic Optic Neuropathy

Ophthalmology

Tobacco amblyopia

Tobacco amblyopia is a toxic amblyopia seen in people who are smoke heavily, consume alcohol and have a diet deficient in proteins and vitamins Pathogenesis: Cyanide present in

Ophthalmology

Papillomacular bundle

Bundle of nerve fibers (retinal ganglion cells) which carry visual impulses from the macula to the optic nerve The word ‘papilla’ here stands for the blind spot –

Ophthalmology

Difference between conjunctival congestion and circumcorneal congestion

It is important to differentiate between conjunctival congestion and circumcorneal congestion as they are seen in different diseases and recognising this is necessary to initiate appropriate treatment. Conjunctival congestion Circumcorneal

Ophthalmology

Etiology of papilledema

Papilledema refers to passive disc edema caused by increased intracranial pressure It is usually bilateral, although unilateral papilledema can exist in certain conditions Conditions causing increased intracranial tension

Ophthalmology

Episcleritis – Etiopathogenesis, Clinical features, Treatment

It is benign inflammation of the episclera and overlying tenon’s capsule It is usually seen in young adults Etiology: Exact cause unknown May be due to hypersensitivity to

Ophthalmology

Unilateral papilledema

Fundus picture – Papilledema Image by The eyes have it Papilledema is usually bilateral (See Why papilledema occurs bilaterally? ) Under certain special circumstances, papilledema can be unilateral.

Category: Ophthalmology