ABSTRACT
A. INTRODUCTION Until recently, the surgical correction of hyperopia and presbyopia has lagged behind the surgery of myopia in terms of patient demand and investigative efforts. Early surgical attempts at hyperopic correction included hexagonal keratotomy (1), automated lamellar keratoplasty (2), epikeratophakia (3), and keratophakia (4). These procedures all had very limited success. They were either very difficult to perform or were unstable and unpredictable and caused irregular astigmatism.
