- Odorant Binding Protein 2A (OBP2A)
 - Opticin (OPTC)
 - Otoferlin (OTOF)
 - Otoraplin (OTOR)
 - Optic Atrophy 3 (OPA3)
 - Optineurin (OPTN)
 - Peripherin 2 (PRPH2)
 - Phosducin (PDC)
 - Retinoic Acid Induced Protein 2 (RAI2)
 - Retinal Outer Segment Membrane Protein 1 (ROM1)
 - Retinitis Pigmentosa 1, Autosomal Dominant (RP1)
 - Retinal Pigment Epithelium Specific Protein 65kDa (RPE65)
 - Radixin (RDX)
 - Retinaldehyde Binding Protein 1 (RLBP1)
 - Rhodopsin (RHO)