The revolution of technology is really the reason we have lasik today. Before lasik was developed, there were many theories about vision correction. By understanding our history, we better appeciate modern medicine. Lasik, epi lasik, i lasik, custom lasik, and prk would not be here today if it were not for our ancestors becasue they actually came up for the its need.
Corneal power and curvature is changed with lasik surgery. The focal point of the retina is in front of the retina in a near sighted or myopic person because the eye is often times too large. Lasik flattens the cornea and as a result pushes the focal point back. The focal point is behind the retina in a far sighted or hyperopic patient because the eye is often times too small. Lasik steepens the cornea and as a result pulls the focal point forward in a far sighted hyperopic patient.
So now that we discussed the general principle of lasik, how did we ever come up with the notion of physically changing the power of the eye to correct vision in the first place? Because before modern treatments like lasik were developed, there had to be a theory that evolved that set forth the need for something like lasik.
The notion of changing corneal power to treat near sightedness and far sightedness is what really led to the invention of LASIK surgery. Believe it or not, this idea can be linked all the way back to Leonardo Da Vinci. In 1508, he wrote a book titled “Code of the Eye” in which he discussed altering corneal power by submerging the eye in water. This theory often credits him with introducing the idea of contact lenses.
In essence, Leonardo Da Vinci also introduced the idea of refractive surgeries like LASIK, custom LASIK, all laser LASIK, PRK, LASEK, i LASIK, & RK. Who would have ever thought this to be the case? Amazing!!!!
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