This. I finally convinced an optometrist to grant me a perscription in my third year as an undergraduate. It was a weak perscription, but it made the difference

This. I finally convinced an optometrist to grant me a perscription in my third year as an undergraduate. It was a weak perscription, but it made the difference between getting a C average and suddenly getting an A average because I no longer had to put so much brain processing power into seeing what was on the board and could put the same processing power into understanding what I saw. Then it happened again as I got older and my arms grew too short to be able to read a book and the fonts grew too large to display enough information on a single screen.