as long as you want to study.
about four years
You will need to study for three years at secondary school
Optometry is a health care profession concerned with eyes and related structures, as well as vision, visual systems, and vision information processing in humans
Average study times are from 30 to 60 minutes.
It really depends. If you know English well enough, you don't need to study at all.
2 years
Anywhere from 1-5 yrs; depending on the major.
It depends what you will be designing but you have to study math and art and get a college degree in them
it takes 1 day
A study was done on how long it would take for a rabbits corpse to decompose. It took eight days. It all depends where the corpse is to determine a more accurate time. This study was done in a field.
my collage training is a 2 year program