title: Safety and effectiveness of the SUPRACOR presbyopic LASIK algorithm on hyperopic patients.
abstract: BACKGROUND
  To evaluate the safety and effectiveness of the Supracor excimer laser algorithm to treat hyperopic presbyopic patients using laser in-situ keratomileusis (LASIK).
  
  
  METHODS
  This is a retrospective case review of patients diagnosed with hyperopia (Sphere ≥ +0.0 D and presbyopia reading add ≥ 1.0 D) who underwent Supracor excimer laser treatment on at least one eye for presbyopia correction from year May 2011 to May 2013. Binocular vision was further analyzed after patients were subdivided into three groups: Group A (n= 22 eyes, 11 patients) had Supracor on both eyes; Group B (n= 18 eyes, 18 patients) had Supracor in one eye and hyperopic LASIK on fellow eye; and Group C (n= 29 eyes, 29 patients) had Supracor in one eye and no treatment on the fellow eye.
  
  
  RESULTS
  This study evaluated 58 patients wherein 69 eyes underwent Supracor presbyopic LASIK. Preoperatively, mean manifest refraction spherical equivalent (MRSE) of all eyes that underwent Supracor was +1.37 ± 0.72 D with mean uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA), and uncorrected near visual acuity (UNVA) of 20/50 (0.35 logMAR), 20/50 (0.35 logMAR), and J9 (0.61 logMAR), respectively. At 6 months postoperatively, mean MRSE was -0.43 ± 0.59 D with mean UDVA, UIVA and UNVA of 20/25 (0.13 logMAR), 20/20 (0.01 logMAR), and J1 (0.05 logMAR), respectively. Loss of two lines of best-corrected distance visual acuity (BCDVA) was seen in 6% of eyes. Mean corneal steepening of 1.0 D at the 3 mm zone and 0.7 D in the 5 mm zone was observed. Mean vertical coma increased from -0.02 to +0.10 while mean 4th order spherical aberration became more negative from 0.20 to -0.14. Mean binocular UDVA, UIVA, and UNVA are 20/20, 20/20 and J1, respectively, in all treatment groups at the 6 month postoperative follow-up. No significant differences in binocular UDVA (p ≥ 0.36), UIVA (p ≥ 0.19) and UNVA (p ≥ 0.56) among groups were seen.
  
  
  CONCLUSIONS
  Supracor excimer laser algorithm is safe and effective for the treatment of presbyopia in hyperopes. Monolateral and bilateral Supracor treatments yielded similarly good binocular vision outcomes.
authors.affiliation: Asian Eye Institute, 8th Floor PHINMA Plaza, Rockwell Center, Makati City, 1200 Philippines ; Department of Ophthalmology, Cardinal Santos Medical Center, 10 Wilson St. Greenhills West, San Juan City, Philippines.
authors.forename: Robert Edward T
authors.initials: RE
authors.lastname: Ang
authors.affiliation: Asian Eye Institute, 8th Floor PHINMA Plaza, Rockwell Center, Makati City, 1200 Philippines.
authors.forename: Emerson M
authors.initials: EM
authors.lastname: Cruz
authors.affiliation: Department of Ophthalmology, Cardinal Santos Medical Center, 10 Wilson St. Greenhills West, San Juan City, Philippines.
authors.forename: Alex U
authors.initials: AU
authors.lastname: Pisig
authors.affiliation: Asian Eye Institute, 8th Floor PHINMA Plaza, Rockwell Center, Makati City, 1200 Philippines.
authors.forename: Maria Luisa Patricia C
authors.initials: ML
authors.lastname: Solis
authors.affiliation: Asian Eye Institute, 8th Floor PHINMA Plaza, Rockwell Center, Makati City, 1200 Philippines.
authors.forename: Rosalie Mae M
authors.initials: RM
authors.lastname: Reyes
authors.affiliation: TECHNOLAS PerfectVision GmbH, A Bausch & Lomb Company, Messerschmittstrasse 1-3, Munich, 80992 Germany.
authors.forename: Gerhard
authors.initials: G
authors.lastname: Youssefi
keywords: Hyperopia; LASIK; Presbyopia; Supracor