I don't know a lot on the subject, but I know that they don't see far when they so new. Naturally, as they get older, they see more colors, etc and further, but I don't know what the timetable is. You could probably bring up a search engine and search like newborn eyesight.
The Riddle of Steel. The Riddle of Steel (abbreviated as TRoS) is a role-playing game (RPG) created by Jacob Norwood and published by Driftwood Publishing. It is designed for role-playing in a typical sword and sorcery or high fantasy gameworld environment.
Weathering steel, best-known under the trademark COR-TEN steel and sometimes written without the hyphen as  Corten steel , is a group of steel alloys which were developed to eliminate the need for painting, and form a stable rust-like appearance if exposed to the weather for several years.