A prescription written by an eye specialist to a person in case he requires the same for the loss in his eye sight. The parameters assigned on the spectacle prescription may vary but the power to every lens is made according to the correct blurred vision which may have caused due to refractive errors. These errors may be due to myopia, hyperopia, astigmatism and presbyopiae. The opticians are not eye doctors and hence they do have the right to write prescription eyeglasses. A dispensing optician should take the prescription by a optometristic or ophthalmologist and then assemble the frames and lenses to be dispensed and then only it should be sold to the patient.
Eyeglass prescription is written on paper pads as a medical prescription is written. The prescription eyeglass lenses are available in three basic materials: glass, plastic and polycarbonate. Glass lenses are the most scratch resistant. The life style of a person should be considered before selecting the lenses.
