First of all, get your eyes tested by professional optometrists. And then, optometrists will provide you with a copy of your prescription.It is worth notice that: when buying the presbyopic glasses, one needs to be helped by the professionals,to assure the accuracy of your reading eyeglasses with the centre of lenses coodinating with the centre of your eyes.
Talking about the glasses frame’s quality, please focus your minds on the following problems:
- Elasticity is an important factor to frame quality.
- The coating of quality frames should be bright and smooth.
- The welding spots should be smooth, small and well-proportioned.
- frames with the close parts assembly have the better quality.
- The size and shape of two lenses should be totally the same, and the nosepiece should be symmetrical.
When the elderly selects presbyopic glasses,one can choose either single vision lenses or bifocals. the principle is to select the mirror with good light transmission.However, the lenses of old citizens become harder and harder. Moreover, old people are beset with weakened accommodation power and aging eyes organization. In order to slow down myopia and for more convenient to see far and near through glasses,one may choose bifocal lenses, or can also choose the progressive lenses,They are good for people to protect eyes.