Intermediate uveitis in retinitis pigmentosa associated with a novel homozygous splice site mutation in PRPF8

The manifestation of intermediate uveitis (IU) in patients with retinitis pigmentosa (RP) is uncommon and poses diagnostic and management challenges. In this case, we describe the clinical features and management outcomes in an RP patient with a novel homozygous splice site mutation in PRPF8. A 21-year-old male presented with unilateral decrease of vision in the right eye for 1 week. Retinal dystrophy features were present in the left eye. After 2 weeks of topical steroid therapy, near-total resolution of IU was achieved and vision improved to 20/30. Signs of (RP) were present bilaterally, with the right eye more affected than the left. Genetic testing indicated a novel homozygous c. 3061-6_3061-3del mutation in the PRPF8 gene. IU in young patients with RP can be effectively treated with a short course of topical steroids, sparing the need for systemic immunosuppressives. After the improvement in IU, the right eye showed more advanced RP changes.