Ophthalmology Flashcards
What supplies sensory innervation of the cornea
Ophthalmic division of the trigeminal nerve
What is an absence of central vision called
Central scotoma
What are two causes of central scotoma
Dry ARMD and optic neuritis
What is a squint looking in (cross eyes) called
Esotropic squint
What is a squint looking out called
Exotropic squint
What is a squint looking up
Hypertropic squint
What is a squint looking down
Hypotropia
What nerve palsy would cause down and out gaze, a fixed dilated pupil, proptosis and ptosis
CN III palsy
What nerve palsy would cause a hypertropia, vertical diplopia, inability to look down and in
CN IV palsy
What nerve palsy would cause horizontal diplopia, eyes medially deviated (esotropia) and cannot move laterally from midline
CN VI palsy
Diagnosis: Gradual painless loss of vision, reduced visual acuity and diminished red reflex
Cataracts
What is the most common cause of blindness
Cataracts
Diagnosis: Sudden painless profound vision loss of central vision in one eye following few days distorted vision
Age-related macular degeneration
What differentiates wet and dry age related macular degeneration on ophthalmoscopy
Neovascularisation leading to haemorrhage in wet and causes scarring
Diagnosis: Mid dilated pupil, haloes around light, reduced vision, nausea, vomiting and sudden unilateral painful eye and redness
Acute angle glaucoma
