Evidence has accumulated that rod activation under mesopic and scotopic light levels alters
visual perception and performance. Here we review the most recent developments in the …

Rod and cone photoreceptors support vision across large light intensity ranges. Rods, active
under dim illumination, are thought to saturate at higher (photopic) irradiances. The extent of …

Purpose To test the ability of a virtual reality (VR) orientation and mobility (O&M) protocol to
serve a measure of functional vision for patients with inherited retinal degenerations (IRDs) …

The intrinsic melanopsin photoresponse may initiate visual signals that differ in
spatiotemporal characteristics from the cone-opsin-and rhodopsin-mediated signals …

Purpose: Inherited retinal diseases affect the L-, M-, S-cones and rods in distinct ways, which
calls for new methods that enable quantification of photoreceptor-specific functions. We …

We assessed how rod excitation (R) affects luminance (L+ M+ S) and chromatic [L/(L+ M)]
reaction times (RTs). A four-primary display based on the overlapped images of two …

In old subjects, the effect on visual performance of the interaction between the spectral
power distribution of street lamps and the different types of intraocular lenses (IOLs) is …

For gray or achromatic objects, brightness is a relatively simple transformation where very
low luminance levels are perceived as black and higher levels are perceived as white. For …

Mesopic and scotopic vision extend over an illuminance range of 10 6. The goal of the
present study was to determine the effect of decreasing light level on the underlying motion …

Diverse adaptive visual processing mechanisms allow us to complete visual search tasks in
a wide visual photopic range (> 0.6 cd/m 2). Whether search strategies or mechanisms …