LASIK for astigmatism: is it truly effective today?
The cornea curves irregularly. Light hits in waves, not points. But not all astigmatism starts there. Some comes from the lens. Some shifts with eyelid pressure. Some is post-surgical. Diagnosing the source matters before correction. LASIK treats the cornea, not every cause. Modern LASIK maps the corneal surface with detail that older systems couldn’t capture…
Read more