Shaped like a bullseye, the soft multifocal contact lenses have two basic portions for focusing light. The center portion of the lens corrects nearsightedness so that distance vision is clear ...
The initial attempts involved the creation of multifocal lenses that have concentric rings of different optical strengths so that light from different distances is focused on the retina.
The fit and feel of contact lenses are very nuanced, and it can take some trial and error to make sure they’re just right. You want lenses that offer precise vision ...
Alcon expects 2024 sales of $9.8 billion to $9.9 billion, compared with prior guidance of $9.9 billion to $10.1 billion. It expects core earnings per share of $3 to $3.05, compared with a previous ...