There is no single ideal lens that is will be suitable for all patients's eyes.
In general, patients will have choice of either single vision lenses or multifocal lenses. The choice will depend on:
- The patient's age
- Current spectacles prescription
- Patient's retina condition
- Patient's expectations, etc.
In my opinion, it will be best for your grandmom to discuss the options with her own eye surgeon, as the surgeon will know her eye condition best.
I hope that this is helpful to you!
Yours Sincerely,
Dr Tony Ho