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Retinal dialysis
Retina & Vitreous
Key Points
- •Retinal dialysis is a circumferential tear at the ora serrata - ~70% are inferotemporal (traumatic, contrecoup mechanism) and most commonly affect young males after blunt ocular trauma
- •The vitreous is typically intact (no PVD) and retinal detachment progresses slowly - demarcation lines indicate chronicity ≥3 months; Shafer sign is usually absent
- •Scleral buckling is the gold standard surgical technique (85–95% single-procedure success) - vitrectomy is reserved for complicated cases with PVR
- •Always examine the fellow eye with scleral indentation - bilateral dialysis occurs in ~10–15% of cases; prophylactic cryopexy prevents subsequent RD
- •Distinguish from giant retinal tear (GRT): dialysis is <90° at the ora serrata; GRT is ≥90° with retinal fold-back and requires vitrectomy with PFCL
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Keep reading Retinal dialysis
17 more sections are included with the Clinical plan.
- Definition
- Epidemiology
- Aetiology and causes
- Pathogenesis
- Classification
- Risk factors and associations