Eye presentations

sxkerr's version from 2016-04-24 19:14


Question Answer
may be due to arteritis (e.g. temporal arteritis) or atherosclerosis (e.g. hypertensive, diabetic older patient)Ischaemic optic neuropathy
due to occlusion of the short posterior ciliary arteries, causing damage to the optic nerveIschaemic optic neuropathy
altitudinal field defects are seenIschaemic optic neuropathy
incidence increases with age, more common than arterial occlusionCentral retinal vein occlusion
causes: glaucoma, polycythaemia, hypertensionCentral retinal vein occlusion
severe retinal haemorrhages are usually seen on fundoscopyCentral retinal vein occlusion
due to thromboembolism (from atherosclerosis) or arteritis (e.g. temporal arteritis)Central retinal artery occlusion
features include afferent pupillary defect, 'cherry red' spot on a pale retinaCentral retinal artery occlusion
causes: diabetes, bleeding disordersVitreous haemorrhage
features may include sudden visual loss, dark spotsVitreous haemorrhage
Large bleeds cause sudden visual lossVitreous haemorrhage
Moderate bleeds may be described as numerous dark spotsVitreous haemorrhage
Small bleeds may cause floatersVitreous haemorrhage
features of vitreous detachment, which may precede retinal detachment, include flashes of light or floaters (see below)Retinal detachment
Dense shadow that starts peripherally progresses towards the central visionRetinal detachment
A veil or curtain over the field of visionRetinal detachment
Straight lines appear curvedRetinal detachment
Central visual lossRetinal detachment
Flashes of light (photopsia) - in the peripheral field of visionPosterior vitreous detachment
Floaters, often on the temporal side of the central visionPosterior vitreous detachment