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Table 1 Clinical signs of retinitis pigmentosa and cone-rod dystrophy

From: Retinitis pigmentosa and allied conditions today: a paradigm of translational research

Clinical signs
Visual function Impaired night vision (nyctalopia), myopia (frequently), progressive loss of visual acuity
Visual field Loss of peripheral vision in early stages, progressive loss of central vision in later stages, ring scotoma, tunnel vision
Eye fundus Bone spicule deposits in peripheral retina, attenuation of retinal vessels, waxy pallor of the optic disc
Eye movement Nistagmus
Electroretinogram Diminution or abolishment of the a-waves and b-waves