Oliver Sacks - the famous neurologist..says about loss of vision in one eye

And this from Oliver Sacks - the famous neurologist writer (himself blind in his right eye for many years as a result of melanoma) :  
"....such experiences enlarge the imagination and show us what is often concealed in health: the complex workings of the brain and its astounding ability to adapt and overcome disability—to say nothing of the courage and strength that individuals can show, and the inner resources they can bring to bear, in the face of neurological challenges that are almost impossible for the rest of us to imagine."  Sacks, Oliver (2011-06-16). The Mind's Eye (p. 2).