Like many Cornea Specialists, I have a thriving general Ophthalmology practice. I am always amazed when I see patients that had Laser Vision Correction done elsewhere when they were over the age of 40 and had both eyes corrected for distance vision only. This effectively wiped out their near vision and made them completely dependent on reading glasses to see up close. They basically traded one shortcoming for another.
Research & Publications
Laser Eye Surgery has improved tremendously from the mid-1990s. New generation lasers have improved both the percentage of patients with 20/20 vision after surgery and the quality of vision. The reason behind this has to do with the shape of the cornea (the cornea is the clear front part of the eye which is reshaped by the laser treatment.)
In nature, there are 2 types of cornea shapes, prolate and oblate. Animals with great vision such as eagles and hawks have prolate corneas. Animals with not-so-great vision like frogs have oblate corneas. The human cornea is naturally prolate in shape like that of a hawk, so by nature we have great visual potential.