Emergency Central is a collection of disease, drug, and test information including 5-Minute Emergency Medicine Consult, Davis’s Drug, McGraw-Hill Medical’s Diagnosaurus®, Pocket Guide to Diagnostic Tests, and MEDLINE Journals created for emergency medicine professionals. Explore these free sample topics:
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- 3 types of retinal detachments with common final pathway:
- Rhegmatogenous retinal detachments (RRD)
- Tractional retinal detachments (TRD)
- Exudative retinal detachments (ERD)
- Most common
- Break or tear of sensory retina allows vitreous fluid to separate the sensory and pigmented parts of retina from each other.
- Acute event, flashes secondary to tearing of nerve fibers, floaters secondary to bleeding
- Contraction of fibrous vitreous bands, as a result of previous insult, pulls the sensory retina off the pigmented retina.
- Chronic and progressive
- Asymptomatic unless hemorrhage or retinal tear occurs
- Subretinal fluid accumulates and separate retinal layers without violating either layer.
- Do not usually require surgery
- Usually secondary systemic disease such as severe acute hypertension, sarcoid, cancer
- Cataract surgery
- Marfan syndrome
- Structural degeneration of underlying anatomy of vitreous body, sensory or pigmented retina
- Proliferative diabetic retinopathy
- Perforating injury
- Retinopathy of prematurity, sickle cell disease, or toxocariasis
- Malignant hypertension, preeclampsia
- Tumors of the choroid or retina (melanoma, retinoblastoma)
- Inflammatory disorders (Coats or Harada disease, posterior scleritis)