If people want one pair of glasses for reading or close-up work, the reading prescription glasses should be his top choices. Reading prescription glasses are available in various kinds of lenses, such us single vision reading prescription glasses, bifocal reading glasses, progressive reading glasses and so on.
Generally speaking, if you need to work close-up for a long time, you would better back up one pair of single vision reading prescription glasses at hand. Since the reading field for the multi-focal reading prescription glasses (have at least two vision fields) are quite limited compared with the single vision prescription glasses which will cause discomfort for your vision if used for a long time. Furthermore, if you have a prescription for multi-focal glasses, you don’t need to go the your eye doctor to re-examine the prescription for single vision reading use since in most instances the two cases can be converted to each other accordingly. For example, if you are given a prescription for multi-focal prescription glasses use, you can follow the steps below to convert to single vision reading prescription glasses.
1. Combine the Add value with Spherical numbers and enter the created new number become the Spherical values.
2. Just leave the Add entry field blank.
3. Narrow the PD by 3mm from the distance vision PD in order to get the eyes closer.
The lens for the reading prescription glass can be made from a variety of materials such as glass, plastic, polycarbonate, high index and so on. Since each lens material has its own features, you may choose them for your preference. Compared with glasses lenses, the plastic ones are lighter and more resistant. Except for the advantages of plastic, the polycarbonate and high index lenses can make your prescription reading glasses thinner and are strongly recommended for high prescription glasses. And you can also refer to your face type to decide whether you need rectangular, round or oval lens shape for your reading prescription glasses.
As to the frames for the reading prescription glasses, you should make sure that the one you choose can fit your personality. The frames can be classified into three major categories: full rim, semi-rim and rimless which can be made from a variety of materials such as plastic, metal, acetate, titanium and etc. Please remember that your skin and hair color are the most important factors you should take into consideration to choose the frame color for your reading prescription glasses.
