opthal Flashcards
what is a feature of retinoblastoma?
leukocorea( white pupil) absent red reflex
what can a cause of continuous watery eyes in a baby
nasolacrimal gland obstruction
A 76-year-old lady who is two days post op following a cataract operation presents to the emergency department with severe eye pain and visual loss in her right eye.
On examination, the eye is red with ciliary injection, corneal oedema, and an absent red reflex.
What is the most likely diagnosis?
bacterial endopthalmitis
It requires urgent treatment with intravitreal antibiotics ± steroids or surgery. It is most commonly caused by gram-positive bacteria.
which treatment can worsen thyroid eye disease?
radioactive iodine ablation therapy.
pain in the medial aspect of the eye and watering with oedema of the lacrimal sac area should be treated with
oral antibiotic-cephalexime- acute dacrocystitis infection of lacrimal sac.
in a patient with a background of asthma who presents with bilateral watering an ditchiness in the eyes. what should be treatemnt
topical antihistamine sodium chromoglycate(mast cell stabliser) for allergic conjectivitis
which medication can be used to confirm the diagnosis of horners syndrome?
apraclonidine(alpha 1 receptor blocker) it causes dilation in the horner eye. due to upregulation of the alpha 1 receptor
what is the most common cause of surgical third nerve palsy
external compression from the posterior communicating artery aneurysm….painfull thrid eye palsy with dilation of the pupil.
Medical lesions refer to non-compressive lesions e.g. multiple sclerosis or vascular causes such as diabetes
what is the investigation done after new blood vessels are visualised in the iris?
rubeosis iriditis is a condition due to diabetes and release of vegf, check the intraoccular pressure…important
myopia is a risk factor for
retinal detachment and primary open angle glaucoma
