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Refractive Surgery/Laser Vision Correction

Risk Factors for Refractive Error After Cataract Surgery

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Poor preoperative corrected distance visual acuity (CDVA), ocular comorbidity, and previous eye surgery correlated with poor refractive outcomes after cataract extraction, according to a multicenter database study involving more than 282,000 individuals. 

Participants had cataract surgery at one of 100 clinics in 2014 or 2015. Investigators looked at demographics, CDVA, target refraction, coexisting eye diseases, surgical difficulties including previous ophthalmic interventions, type of surgery, intraocular lens (IOL), and surgical complications. Among the results: 

  • The average biometry prediction error in spherical equivalent was 0.42 diopters (D). 
  • ~206,000 eyes achieved a biometry prediction error within ±0.50 D. 
  • ~263,000 eyes were within ±1.0 D. 
  • Poor preoperative CDVA, target refraction, coexisting eye diseases, surgical difficulties, and surgical complications all played a role in postoperative refractive error.

Lundstrum M, Dickman M, Henry Y, et al.  Risk factors for refractive error after cataract surgery: Analysis of 282 811 cataract extractions reported to the European Registry of Quality Outcomes for cataract and refractive surgery. J Cataract Refract Surg. 2018;44(4):447-452. doi: 10.1016/j.jcrs.2018.01.031.

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