Unit 6 - Retinal detachments Flashcards
What are the risk factors for developing a retinal detachment?
- Myopia
- Cataract surgery
- Trauma
- ROP
- Stickler’s syndrome
What are the symptoms of PVD?
- Temporal flashes, monochromatic
- Small black dots - blood
What conditions should be considered in young patients complaining of constant photpsia?
MEWDS
AZOOR
What types of RD are there?
- Rhegmatogenous (associated with a tear)
- Exudative (due to inflammation)
- Tractional either PVD or PVR (post RD surgery)
What two types of surgery are used?
- Vitrectomy
- Buckling
What proportion of symptomatic PVDs will have a tear?
25%
College of Optometry says 10-15%
What are the 5 causes of tears?
- PVD (99%)
- Trauma (globe compression in young)
- Pathology i.e. CMV, ARN
- Myopic round holes
- Traction (DR, macular hole)
What proportion of symptomatic breaks will lead to a RD?
50%
What are the steps in RD surgery?
- Port insertion
- Infusion
- Vitrectomy
- Treatment
- Search
- Tamponade
- Remove ports
How long does it take for retinal cryotherapy, cautery or laser to glue retina together?
Scar takes 7-10 days to form
How long does air last in the air when used as a tamponade?
1 week
How long does SF6 and C3F8 last in the eye as a tamponade?
SF6 - upto 3 months
C3F8 - 3 months