ARR3 and cone dystrophy: It has been identified that eoHM might be accompanied by reduced scotopic and photopic amplitudes, which was strongly correlated with the degree of myopia or myopic maculopathy in the late stage.25 26 Different from cone dystrophy, patients with ARR3-associated MYP26 usually presented with reports of near vision and myopia diagnosis by routine examinations, but no photophobia or colour blindness, which is characteristics of cone dystrophy.