3 years ago

PERIPHERAL RETINOSCHISIS IN INTERMEDIATE UVEITIS

PERIPHERAL RETINOSCHISIS IN INTERMEDIATE UVEITIS
Lowder, Careen Y., Baynes, Kimberly, Pichi, Francesco, Nucci, Paolo, Srivastava, Sunil K., Neri, Piergiorgio
Purpose:To examine cases of intermediate uveitis complicated by retinoschisis and review the pathogenetic hypothesis. Methods:A retrospective chart review of patients with intermediate uveitis. Data were collected at three uveitis referral centers on sex, age, best-corrected visual acuity, degree of vitritis, extent and location of snowbanking, presence of hard exudates, neovascularization, vitreous hemorrhage, and extent and nature of retinal elevations. Results:A series of 23 eyes of 20 patients were examined; patient's age ranged from 10 years to 70 years and follow-up period from 8 months to 6 years. Twenty-two eyes had retinoschisis (95.6%), and 1 had retinoschisis associated with serous retinal detachment (4.3%). Extensive inferior pars plana exudates with snowbanking were present in 12 eyes (52.2%), whereas 3 eyes had inferior snowballs over the elevated retina. Neovascularization of the vitreous base accompanied by vitreous hemorrhage occurred in one eye. There was no coexisting macular pathology in 16 eyes, whereas 4 eyes had cystoid macular edema. Conclusion:The appearance of peripheral retinoschisis in this series of uncontrolled intermediate uveitis patients seems to be secondary to a complex balance between the persistent fluorescein leakage, a subclinical peripheral ischemia, and the constant low-grade vitreous inflammation that causes vitreous shrinkage and traction. The results of this study suggest that the absence of macroscopic changes in the retina does not preclude ischemic peripheral abnormalities, and the detection of a peripheral retinoschisis in an intermediate uveitis patient with active fluorescein leakage must suggest the need for a more aggressive form of treatment despite the good visual acuity.
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