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GTR Home > Conditions/Phenotypes > Congenital stationary night blindness 2A

Summary

Excerpted from the GeneReview: X-Linked Congenital Stationary Night Blindness
X-linked congenital stationary night blindness (CSNB) is characterized by non-progressive retinal findings of reduced visual acuity ranging from 20/30 to 20/200; defective dark adaptation; refractive error, most typically myopia ranging from low (-0.25 diopters [D] to -4.75 D) to high (≥-10.00 D) but occasionally hyperopia; nystagmus; strabismus; normal color vision; and normal fundus examination. Characteristic ERG findings can help distinguish between complete X-linked CSNB and incomplete X-linked CSNB.

Available tests

29 tests are in the database for this condition.

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Genes See tests for all associated and related genes

  • Also known as: AIED, COD3, COD4, CORDX, CORDX3, CSNB2, CSNB2A, CSNBX2, Cav1.4, Cav1.4alpha1, JM8, JMC8, OA2, CACNA1F
    Summary: calcium voltage-gated channel subunit alpha1 F

Clinical features

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