Building on foundational principles of how aging eyes perceive light, this advanced session dives deeper into the technical side of lighting for longevity. Designers will explore photometric analysis, contrast ratios, spectral tuning, and fixture performance to better support visual acuity, safety, and comfort in aging‑in‑place environments. The course examines how glare, reflectance values, and luminance distribution interact within real residential conditions—and how to model these factors for predictable outcomes. Ideal for experienced professionals, this discussion blends science, standards, and applied methodology to strengthen precision in lighting design for aging clients.