Vision is the dominant sense for most humans, and eye health involves both the optical mechanics of the eye itself and the neurological processing of visual information in the brain. Many conditions that damage eyesight — diabetic retinopathy, hypertensive changes, glaucoma — are systemic diseases expressed in the eye, making the eye examination a window into cardiovascular and metabolic health. Regular eye care, thoughtful light management, and the habits that protect systemic health are also the habits that protect vision.
Each step builds on the last.