Uveitis, glaucoma, and cataract with mevalonate kinase deficiency.

We report 7 years of follow-up data on ocular findings in a 2-month-old boy who presented with early-onset bilateral granulomatous panuveitis with subsequent development of secondary glaucoma and total cataract, along with multisystem involvement. He was diagnosed with mevalonate kinase deficiency (MKD), with a homozygous missense variant in exon-6 of the mevalonate kinase (MVK) gene on chromosome-12 that resulted in the substitution of aspartic acid for asparagine at codon 205 (p.Asn205Asp). Despite being managed with topical/systemic steroids and immunosuppression therapy with methotrexate and a short course of adalimumab, the patient continued to develop recurrent episodes of uveitis along with multisystem manifestations. The occurrence of early-onset uveitis is rare, as is the diagnosis of MKD.