Abstract
BackgroundTo evaluate the safety and effectiveness of the Supracor excimer laser algorithm to treat hyperopic presbyopic patients using laser in-situ keratomileusis (LASIK).MethodsThis 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.ResultsThis 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.ConclusionsSupracor 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.
Highlights
To evaluate the safety and effectiveness of the Supracor excimer laser algorithm to treat hyperopic presbyopic patients using laser in-situ keratomileusis (LASIK)
In conventional monovision LASIK, the dominant eye is targeted for Plano refraction for good distance vision while the non-dominant eye is targeted to −1.50 D for good near vision [1, 2]
Analysis of patients was further subdivided to three treatment groups: Group A (n = 11 patients) had bilateral Supracor treatment; Group B (n = 18 patients) had Supracor on one eye and Hyperopic LASIK on the fellow eye; and Group C (n = 29 patients) underwent Supracor on one eye and no treatment on the fellow eye (Table 1)
Summary
To evaluate the safety and effectiveness of the Supracor excimer laser algorithm to treat hyperopic presbyopic patients using laser in-situ keratomileusis (LASIK). Presbyopia is a condition wherein the ability to read small print weakens as one ages beyond 40 years old. Nonsurgical solutions are reading glasses or contact lenses. Surgical solutions include cornea-based treatments such as laser vision correction or inlays while lens-based. Laser in-situ keratomileusis (LASIK) involves creating a flap and reshaping the cornea to correct refractive power and improve distance vision. More advanced laser algorithms have been developed to produce a multifocal ablation or manipulate asphericity to improve near vision [3,4,5,6,7,8,9]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
