Acute Retinal Necrosis Clinical Presentation
- Author: Andrew A Dahl, MD; Chief Editor: Hampton Roy Sr, MD more...
History
Typically, acute retinal necrosis is a disease of immunocompetent individuals. Initially, patients may complain of the following:
- Red eye
- Periorbital pain
- Hazy decreased vision
- Other areas of previous infections - Primary varicella infections, herpes zoster
Both the herpes simplex virus and VZV can cause widely variable clinical manifestations, ranging from the typical severe acute retinal necrosis to more atypical, slowly progressing necrotizing and nonnecrotizing inflammation.[2]
Physical
Examination findings may include the following:
- Keratic precipitates - Fine or granulomatous
- Occlusive retinal vasculitis involving arteries and veins
- One or more focus of retinitis, resulting in necrosis with discrete borders located in the retinal periphery with circumferential spread
- Vitritis (shown in the image below)
Causes
Most cases of acute retinal necrosis have been reported to be caused by the following:[3]
- Varicella-zoster virus
- Herpes simplex type 1
- Herpes simplex type 2[4]
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