variable visual acuity

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• Visual acuity — 20/15 and 20/15 vision redirect here. For other uses, see 2020 (disambiguation). Typical Snellen chart used for visual acuity testing. Visual acuity (VA) is acuteness or clearness of vision, which is dependent on the sharpness of the retinal… …   Wikipedia

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• oculocutaneous albinism — (OCA) albinism characterized by partial or total absence of melanin from the melanocytes of the skin, hair, and eyes, with additional ocular defects including hypoplastic fovea, photophobia, nystagmus, and decreased visual acuity. There are a… …   Medical dictionary