Vitreous Haemorrhage Flashcards
How strong are the attachments between the posterior hyaloid and the ILM?
They aren’t strong. They’re weak
How are attachments around where the ILM is the thinnest?
They have strong attachments
Where is the ILM the thinnest?
Over blood vessels
How are the attachments between the vitreous and the retina over blood vessels?
They have strong attachments
When the vitreous collapses anteriorly, what happens with attachments?
There’s significant tension on the retina around these strong attachments and sometimes the tension is strong enough to lead to a tear in the vessel. The tear leads to leaking blood into the vitreous and settles inferior due to gravity
What symptoms would a px suffering from vitreous haemorrhages complain of?
A sudden shower of small dark floaters or maybe described as a red mist
In vitreous haemorrhages can VA be affected?
Yes depending on the location of the haemorrhage
In a vitreous haemorrhage, will the retina be obscured?
Yes the retinal vessels with be obscured because the haemorrhage lies anterior
Why are vitreous haemorrhages significant?
Because haemorrhages indicate the px is at risk of a retinal break or a tear then leading to a detachment
What are the other causes of vitreous haemorrhage besides PVD?
Proliferative Diab retinopathy or trauma
What is the treatment for vit haemorrhage?
There’s no treatment and they’re managed without referral but the most important thing is to eliminate the chance of a retinal break or a tear
Excluding retinal tears and breaks what else is a px with vit haemorrhage at risk of?
Progression onto anomalous PVD which may involve a break or tear
What is the time period to review the px for vit haemorrhage?
6 weeks
Why do we review vit haemorrhage px’s 6 weeks later?
Because breaks after haemorrhages and PVD’s can be delayed by up to 6 weeks
What occurs in a 6 week review after PVD or haemorrhaging?
Confirm no increase in sx of F/F and examine the fundus for delayed break or tears
