In our cohort, we demonstrate three distinct phenotypes as follows: pattern dystrophy in both the monoallelic IMPG1 cases, maculopathy (PD/AVMD) in the monoallelic IMPG2 cases, and retinitis pigmentosa with early maculopathy in biallelic IMPG2 cases. This evidence concerns the gene IMPG1 and adult-onset foveomacular vitelliform dystrophy.