Complex sentence: Jagadguru Rāmabhadrācārya lost his eyesight at the age of two months and has been blind ever since, but has never used Braille or any other aid to learn or compose.
Split into simpler sentences: Jagadguru Rāmabhadrācārya lost his eyesight at the age of two months and has been blind since then. He has never used Braille or any other aid to learn or compose.