If it is true that...

Cytochrome oxidase is one of the enzymes damaged by stress and by blue light, and activated or restored by red light, thyroid, and progesterone

and

Mitochondrial function in general is poisoned by the unsaturated fats, especially arachidonic acid and DHA

Then it must be true that...

Light and stress, especially with excess iron, damage the retina when the cells contain too much PUFA