1 How long does it take to get degrees in psychology? 2  Most bachelor's degree programs are designed as 4-year programs. 3  Most master's degree programs are designed to take 2-1/2 years. 4  Most doctoral degree programs are designed to take about 5 years (if you do not already have your master's degree).
Your prescription can be found on the box on your contact lenses. This is law that your lens prescription must be there and you use it to place your order online. Your prescription is valid for a minimum of 1 year from the date your eye care doctor gives you the prescription. In some states it's 2 years.
So in California, for example, eyeglass prescriptions must be valid for AT LEAST TWO YEARS. This is one argument as to why optical prescriptions expire after one or two year. Another argument is presented below.   Depending on the doctor eye glass prescriptions will expire anytime with in a 2 year period of time. This is for a few reasons.