Cognitive and cultural embeddedness: combining institutional economics and economic sociology
According to this, pederasty is sexual relations between two males, especially when one of them is a minor. Other definitions, like the one that JSBangs found, differ slightly. But otherwise, I think you answered the question yourself: pedophile refers to the attraction, while pederasty refers to the act itself.
Corneaplasty, is a non-surgical procedure that changes the shape of the cornea (the front part of the eye) using modern Ortho-K contact lenses as corneal molds, in conjunction with certain medications to prepare and final-set the cornea.