Lutein: The filter your retina is running low on
Lutein is a carotenoid that deposits directly into the macula, the central part of the retina responsible for sharp, detailed vision. It acts as a biological filter against blue light and oxidative stress. The average Indian diet delivers roughly 1 to 2 mg of lutein per day. The therapeutic threshold most ophthalmologists reference is 10 mg. That gap is not trivial.
