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.)
SPH is one of the parameters to report your eye prescription. Your sph +4.00 means that the concave sphere with no astigmatism belongs to the hyperopia 400 prescription. However, there are other parameters, such as CYL which means the astigmatism part and AX which means the axis position in the astigmatism.