If we're sharing websites to obtain glasses, eyebuydirect has been my go to for the last few years.

Warby Parker, while significantly more expensive, does have pretty high quality frames with flat rates on lenses.

If your prescription is less than -5.00, Eyebuydirect provides free aspheric CR-39 lenses, which will be higher optical quality (especially for computer use - less chromatic aberration) than the polycarb lenses used by Warby Parker.