When We Migrate from Dark to Light?

When we go from darkness into bright light, we feel difficulty in seeing properly for a moment till rhodopsin is bleached and cones become functional. Accomodation is the reflex mechanism by which the focus of the eye changes to make the images of distant and near objects sharp on the retina.

When we migrate from dark to light we fail to see for sometime but after a time visibility becomes normal it is example of?

Question : When we move from dark to light, we fail to see for some time but soon the visibility become normal. It is. Photoperiodism.

Why do my eyes take so long to adjust to light?

Both cones and rods participate in dark adaptation, slowly increasing their sensitivity to light in a dim environment. Cones adapt faster, so the first few minutes of adaptation reflect cone-mediated vision.