Phakic, presbyopic patients between the ages of 45 and 60 years old who have cycloplegic refractive spherical equivalent of +0.50 diopters to -0.75 diopters with less than or equal to 0.75 diopters of refractive cylinder, who do not require glasses or contact lenses for clear distance vision, and who require near correction of +1.00 to +2.50 diopters of reading add.