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Choroidal detachment
Retina & Vitreous
Key Points
- •Choroidal detachment is accumulation of fluid (serous) or blood (hemorrhagic/SCH) in the suprachoroidal space; most commonly occurs after intraocular surgery, especially glaucoma surgery with hypotony
- •Transillumination is the key differentiator: positive in serous CD (light passes through) vs negative in hemorrhagic CD (blood blocks light)
- •CD is limited by vortex vein attachments and does NOT extend to the optic disc - unlike RD which inserts at the disc and ora
- •Kissing (appositional) CD = surgical emergency - both choroidal lobes meeting centrally with retinal compression; poor visual prognosis
- •Drainage of SCH: wait 7–14 days for clot lysis; drain via posterior sclerotomy 3–4 mm behind limbus; premature drainage is ineffective
- •Serous CD causes hypotony (low IOP) while hemorrhagic CD causes elevated IOP - a key exam-tested distinction
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Keep reading Choroidal detachment
17 more sections are included with the Clinical plan.
- Definition
- Epidemiology
- Aetiology and causes
- Pathogenesis
- Classification
- Risk factors and associations