1 You can also take courses in math, biology, and other sciences in high school to get ahead of the game.  Another option to enrolling in a veterinary technician program is to enter a U.S. university that offers a four-year bachelor's degree in veterinary technology. There are fifteen of these programs in the country.
Help with your Glasses Prescription The Sphere The sphere (Sph) specifies the strength of lens required to correct your focus - a plus sphere to correct long-sightedness (hyperopic - difficulty focusing on close objects) and a minus to correct short sightedness (myopia - difficulty focusing on distant objects.)
Ignore any astigmatism if you have hard contact lenses. A hard contact will correct the shape of the eye by making it more spherical. Therefore, the lens will be of similar strength as your glasses prescription. Take astigmatisms into account if you have soft contact lenses. You will need a toric, or differently-shaped, soft contact lens if you have at least .75D astigma.