Correction of presbyopia in hyperopia with a center-distance, paracentral-near technique using the Technolas 217z platform

J Refract Surg. 2008 May;24(5):494-500. doi: 10.3928/1081597X-20080501-07.


Purpose: To analyze the results of hyperopic patients treated with a peripheral presbyLASIK algorithm for the correction of presbyopia.

Methods: The study included 44 eyes of 22 hyperopic patients treated with a peripheral presbyLASIK technique using a Technolas 217z excimer laser. Mean patient age was 56 years (range: 47 to 72 years), mean preoperative spherical equivalent refraction was +1.21 +/- 0.77 diopters (D) (range: +0.50 to +4.00 D), and mean spectacle near addition was +1.76 +/- 0.42 D (range: +1.00 to +2.75 D). The Peripheral Multifocal LASIK (PML) ablation pattern creates a multifocal corneal profile over a 6.5-mm diameter, performing the distance correction first in a 6-mm optical zone and then near correction in a 6.5-mm zone. Main outcome measures were uncorrected visual acuity (UCVA) and best spectacle-corrected visual acuity (BSCVA) for near and distance, spherical equivalent refraction, contrast sensitivity, and corneal aberrations.

Results: Six months postoperatively, mean binocular UCVA was 1.06 +/- 0.13 for distance and 0.84 +/- 0.14 for near. Mean postoperative spherical equivalent refraction was -0.42 D (range: -1.12 to +0.87 D). Two (4.5%) eyes lost 1 line of BSCVA for distance and near vision, and 20 (45%) eyes gained 1 line of distance BSCVA. Contrast sensitivity decreased for 3, 6, 12, and 18 cycles/degree. Corneal aberration analysis showed a slight increase in coma and decrease in spherical aberration.

Conclusions: The peripheral presbyLASIK technique used in this study is a safe and efficient treatment that may improve functional near vision in presbyopic patients with low and moderate hyperopia (from +0.50 to +3.00 D).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Algorithms
  • Astigmatism / surgery*
  • Contrast Sensitivity / physiology
  • Corneal Topography
  • Female
  • Humans
  • Hyperopia / surgery*
  • Keratomileusis, Laser In Situ / methods*
  • Lasers, Excimer*
  • Male
  • Middle Aged
  • Presbyopia / surgery*
  • Prospective Studies
  • Pupil / physiology
  • Surveys and Questionnaires
  • Visual Acuity / physiology