“Adequate lighting” means levels of illumination suitable to tasks the resident chooses to perform or the facility staff must perform.
“Comfortable lighting” means lighting that minimizes glare and provides maximum resident control, where feasible, over the intensity, location, and direction of illumination so that visually impaired residents can maintain or enhance independent functioning.
As a person ages, their eyes usually change so that they require more light to see what they are doing and where they are going. An adequate lighting design has these features:
Sufficient lighting with minimum glare in areas frequented by residents;
Even light levels in common areas and hallways, avoiding patches of low light caused by too much space between light fixtures, within limits of building design constraints;
Use of daylight as much as possible;
Elimination of high levels of glare produced by shiny flooring and from unshielded window openings (no-shine floor waxes and light filtering curtains help to alleviate these sources of glare);
Extra lighting, such as table and floor lamps to provide sufficient light to assist residents with tasks such as reading;
Lighting for residents who need to find their way from bed to bathroom at night (e.g., red colored night lights preserve night vision); and
Dimming switches in resident rooms (where possible and when desired by the resident) so that staff can tend to a resident at night with limited disturbances to them or a roommate. If dimming is not feasible, another option may be for staff to use flashlights/pen lights when they provide night care.