Vision loss is tied to lack of sleep. Lose weight and still be healthy.
At my age, my regular sleeping aid includes melatonin, calcium and magnesium and valerian.  Young ones sleep better than older ones with their higher melatonin levels.  Sleeping past 11pm is hard on our liver. Our eyes will show it when we don’t get enough sleep and half of us, older adults, in the world are not getting enough sleep.  Feed your brain and you are also feeding your eyes, since the nutrients needed for both are the same.
I was sleeping well yesterday because in the morning I prepared a warm water with one boiled egg, no hormone and antioxidants at

* Leucine
A growing body of evidence indicates that increasing leucine intake can have multiple benefits. It provides an important building block for muscle protein, activates key events in the complex process of protein synthesis, augments weight loss, improves body composition, and corrects metabolic disturbances such as elevated glucose and cholesterol levels..