Let There be Light
Lighting design integrates both artificial and natural light. Well-designed lighting that mimics natural daylight patterns can support the synchronization of patients' circadian rhythms, which promote physiological processes, natural repair mechanisms, and immune function.
And beyond the benefits to patient and clinical staff wellbeing, proper lighting increases visibility and reduces hazards. Well-lit spaces promote infection control by aiding in the identification and removal of potential contaminants. Ideal lighting levels minimize the risk of trips, falls, and other accidents for patients, caregivers, and visitors. This is especially important for elderly and geriatric patients who need more light due to yellowing of their lenses as they age (Salvi, Akhtar and Currie 2006).
Here's how DesignGroup optimizes lighting in patient settings and why it makes a difference.
Light Temperature: A light’s color (also known as temperature), along with its color rendering index (CRI), is important for both proper viewing of the patient and reduced eye strain during detailed work. Color temperature around 4000K is ideal as it is considered “natural light” by color reference scales (Rock 2023). Natural light promotes bright spaces with clarity and consistency. More importantly, this color temperature also blends well with daylight that enters windows in the patient room.
Controls: Controlling light is just as crucial for patients to heal within their spaces as it is for clinical teams to perform their tasks. Within the room, patient function lights can allow for both patient and family to adjust lighting needs simply and easily by selecting a pre-set control, such as exam, reading, ambient, etc. Combining these pre-set controls with different light zones within the room means a patient can sleep, a family member can read, and a clinical team member can administer medication all with appropriate lighting levels.
Shades: Just as artificial lighting controls are important, so are controls for daylighting. Providing dual shades with both a small weave and a blackout option means patients and family can choose the appropriate light for the moment. Allowing daylight to reach a patient can help the healing process and decrease length of stay; studies have shown that proximity to windows in a multi-patient room meant a reduced LOS (length of stay) for patients closest to the windows (Park, et al. 2018).