<h4>Purpose</h4>To develop an efficient approach to estimating visual field (VF) in patients with X-linked retinitis pigmentosa (RP) based on macular OCT scans.<h4>Design</h4>Retrospective analysis of patients who were enrolled in a natural history study at Moorfields Eye Hospital (London, United Kingdom).<h4>Subjects</h4>Male patients with genetically confirmed retinitis pigmentosa GTPase regulator (<i>RPGR</i>)-associated RP.<h4>Methods</h4>Visual field raw data were exported and analyzed including Visual Field Modeling and Analysis software. This evidence concerns the gene RPGR and retinitis pigmentosa 1.