How to buy reading glasses online for computer to reduce eye strain?

[Kaibito]

I am looking for a pair of reading glasses to work for computer to reduce eye strain, how can I buy it and where do you recommend?

[Kailua]

Probably a pair of bifocal glasses with the upper part for computer use, lower part for reading can meet your demands.First, your recent RX is needed. (make sure your SPH power, near PD/ far PD, ADDare all included). Second, choose the frame that can be made into bifocals/progressives. (usually the frame height is greater than that of single vision lenses). Third, state clear or choose the right usage of your glasses( bifocals for both reading and computer use).