Purpose: To report a case of unilateral stellate nonhereditary idiopathic foveomacular retinoschisis (SNIFR) in a young male showing structural changes induced by a Valsalva maneuver.
Methods: Case report of a 26-year-old oboist with SNIFR, including multimodal imaging. Eye-tracked spectral-domain optical coherence tomography (SD-OCT) was used to compare the retinal architecture at rest and during a Valsalva maneuver.
Results: Spectral-domain optical coherence tomography showed macular and peripapillary retinoschisis with no signs of pathologic myopia, optic pit, or vitreoretinal traction. A full-field electroretinogram showed supranormal responses in the eye studied. Magnetic resonance imaging of the brain showed no abnormalities. Eye-tracked SD-OCT scans showed an increase in retinal thickness reaching 28 microns superior to the disc during an induced Valsalva maneuver.
Conclusion: Stellate nonhereditary idiopathic foveomacular retinoschisis is a diagnosis made when other known causes of retinoschisis have been excluded. In this patient with unilateral SNIFR, an increase in retinal thickness during a Valsalva maneuver was demonstrated. Further study would be needed to determine the mechanism producing this change and to assess its potential influence on visual prognosis.
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View Article and Find Full Text PDFStellate nonheritable idiopathic foveomacular retinoschisis in juveniles: case report.
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