Sam Altman’s Orb scans eyes to verify identity, but privacy concerns, contact lens issues, and global rollout hurdles are raising questions about its real-world use.

Dual-focus contact lenses appeared effective in high myopia in teenagers and young adults, according to a study published in Ophthalmic and Physiological Optics. Previous research has demonstrated the ...

In astigmatism, the cornea (the clear dome that covers your eye) or the lens (which focuses light rays on the light-sensitive retina) is abnormally shaped. Wearing contact lenses or glasses that ...