Summary
This work examines the properties of intrinsically photosensitive retinal ganglion cells (ipRGCs) relative to other RGC types, noting their lower light sensitivity, slower response kinetics, and minimal adaptation. Understanding ipRGC biology is critical for lighting design targeting circadian entrainment and for therapeutic strategies aimed at restoring non-image-forming visual function.
Key Findings
- ipRGCs are less sensitive to light compared to other retinal ganglion cells
- ipRGCs respond more slowly and show little adaptation compared to other RGC subtypes
- ipRGC axons project to distinct targets separate from classical image-forming visual pathways
Categories
The Science of Light: Discusses ipRGC properties including light sensitivity, adaptation characteristics, and axonal projections, which are foundational to understanding melanopsin-based photoreception.
Eye Health & Vision: Addresses retinal ganglion cell maturation and transplantation, relevant to retinal health and potential restoration of photoreceptive function.
Author(s)
P Venugopalan
Publication Year
2016
Related Publications
The Science of Light
- Phototransduction by retinal ganglion cells that set the circadian clock
- Color appearance models
- The mammalian circadian timing system: organization and coordination of central and peripheral clocks
- Diminished pupillary light reflex at high irradiances in melanopsin-knockout mice
- Melanopsin is required for non-image-forming photic responses in blind mice
Eye Health & Vision
- Diminished pupillary light reflex at high irradiances in melanopsin-knockout mice
- Genetic reactivation of cone photoreceptors restores visual responses in retinitis pigmentosa
- Melanopsin and rod–cone photoreceptors play different roles in mediating pupillary light responses during exposure to continuous light in humans
- Characteristic patterns of dendritic remodeling in early-stage glaucoma: evidence from genetically identified retinal ganglion cell types
- Intrinsically photosensitive melanopsin retinal ganglion cell contributions to the pupillary light reflex and circadian rhythm