(Physiol.)

a product intermediate between visual purple and visual white, formed in the photochemical action of light on visual purple.

See also: Visual

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.

References in periodicals archive

Slowing the visual cycle reduces the availability of vitamin A derivatives (11-cis- and all-trans-retinal) to form precursors of A2E and related compounds.

Acucela Receives Orphan Designation from the EMA for Emixustat for the Treatment of Stargardt Disease

Light acts on rhodopsin triggers, the well-known visual transduction cascade, but can also induce cell damage and death through phototoxic mechanisms [16]; reactive oxygen and nitrogen species are generated when light affecting the retinoids leads to the ionization of biomolecules and release of all-trans-retinal. Afterwards, the excitation of all-trans-retinal generates oxygen enhancement and causes photooxidative damage [17].

A Brief Review on the Pathological Role of Decreased Blood Flow Affected in Retinitis Pigmentosa

Kevany et al., "Photoreceptor proteins initiate microglial activation via toll-like receptor 4 in retinal degeneration mediated by all-trans-retinal," The Journal of Biological Chemistry, vol.

Toll-like receptor 4 in bone marrow-derived cells contributes to the progression of diabetic retinopathy

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Visual yellow