The Effect of LASIK on the Calibration of IOL Formula Calculation: a Comparative Study

Taipei Nobel Eye Clinic331 enrolled

Overview

Direct comparison study between previous LASIK or non-LASIK cataract eyes, the performance between non-LASIK and LASIK patients were (i) Ophthalmic examinations: UDVA, CDVA and uncorrected near visual acuity (UNVA) (40cm) and (ii) Refractive prediction error: defined as difference between postoperative sphere and target refraction.

Study Type

OBSERVATIONAL

Enrollment

331

Conditions

Cataract Senile

Interventions

routine cataract surgery and intraocular lens implantationDEVICE

routine cataract surgery and intraocular lens implantation

Eligibility

Sex: ALLMin age: 50 YearsMax age: 80 Years

Medical Language ↔ Plain English

Inclusion Criteria: * presence of cataract in both eyes * corrected distance visual acuity under 20/40 * Phacoemulsification cataract surgery was arranged for both eyes Exclusion Criteria: * complicated cataract * corneal opacities or irregularities * corneal astigmatism \> 1.50 diopter * amblyopia, anisometropia * surgical complications such as posterior capsular bag rupture or vitreous loss, IOL tilt or decentration * coexisting ocular pathologies, glaucoma, non-dilating pupil, history of intraocular surgery, or retinopathy * optic nerve or macular diseases * refusal or unable to maintain follow-up.

Locations (1)

Taipei Nobel Eye Clinic

Taipei, Taiwan

Outcomes

Primary Outcomes

visual acuity

Time frame: 1 month after surgery

refractive prediction error

Time frame: 1 month after surgery

Data from ClinicalTrials.gov

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