How does PTK differ from LASIK, LASEK and PRK?

The main difference between PTK and these others is that it treats medical conditions such as corneal dystrophy. In other words, there is a clear medical need for this surgery.

LASIK, LASEK and PRK are performed to correct refractive errors, or for reasons of ‘personal enhancement’. In other words, they are undertaken for cosmetic reasons.

Refractive errors include myopia, hypermyopia/hyperopia, presbyopia and astigmatism.

PTK Laser Eye Surgery Guide:

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