Tolong jelaskan mengenai Kesaksian Huxley dari Metoda Bates

Aldous Huxley, salah seorang penulis dan filsuf terkenal, memberikan kesaksian dalam bukunya, The Art Of Seeing, setelah mencoba mengikuti metoda Bates.

"Within a couple of months I was reading without spectacles and, what was better still, without strain and fatigue … At the present time, my vision, though very far from normal, is about twice as good as it used to be when I wore spectacles."