Advertisement

Target refraction for best uncorrected distance and near vision in cataract surgery

Abstract

Purpose: To assess the target refractive error after cataract surgery to achieve best uncorrected visual acuity for both distance vision and reading vision.

Methods: The study included patients consecutively undergoing routine phacoemulsification with clear corneal incisions and implantation of a foldable monofocal intraocular lens (IOL). Uncorrected distance visual acuity (UCDVA), best-corrected distance visual acuity (BCDVA), uncorrected near visual acuity (UCNVA,) and best-corrected near visual acuity were measured at 93 ± 47 days (minimum 4 weeks) after surgery. Inclusion criteria were a postoperative cylindrical refractive error ≤1.5 D and an unremarkable postoperative status.

Results: The study included 493 eyes of 493 patients with a mean age of 74.2 ± 8.7 years and mean axial length 23.4 ± 1.1 mm. The UCDVA significantly (p<0.001) increased with decreasing myopic refractive error (spherical equivalent) towards emmetropia and then significantly (p<0.001) decreased with increasing hyperopic refractive error. The UCNVA significantly (p<0.001) decreased with decreasing myopic and increasing hyperopic refractive error. The ascending UCDVA line and the descending UCNVA line intersected in the refractive error range (spherical equivalent) of −1.00 D to −1.50 D. For patients with a BCDVA of ≥20/25, the lines of UCDVA and UCNVA intersected at a UCDVA range between 20/40 (logMAR 0.30; −1.5 D) and 20/32 (logMAR 0.26; −1.0 D) and at a UCNVA range between Jaeger 3 (logMAR 0.26) and Jaeger 4 (logMAR 0.32).

Conclusions: For routine unilateral cataract surgery with implantation of monofocal IOLs, target refractive error to achieve best uncorrected distance and near vision was in the range of −1.00 D to −1.50 D (spherical equivalent).

Eur J Ophthalmol 2014; 24(4): 509 - 515

Article Type: ORIGINAL RESEARCH ARTICLE

Article Subject: Lens/Cataract

DOI:10.5301/ejo.5000414

Authors

Alexander K. Schuster, Frank C. Schlichtenbrede, Björn C. Harder, Sven C. Beutelspacher, Jost B. Jonas

Article History

Disclosures

Financial Support: No financial support was received for this submission.
Conflict of Interest Statement: None of the authors has conflict of interest with this submission.

This article is available as full text PDF.

  • If you are a Subscriber, please log in now.

  • Article price: Eur 36,00
  • You will be granted access to the article for 72 hours and you will be able to download any format (PDF or ePUB). The article will be available in your login area under "My PayPerView". You will need to register a new account (unless you already own an account with this journal), and you will be guided through our online shop. Online purchases are paid by Credit Card through PayPal.
  • If you are not a Subscriber you may:
  • Subscribe to this journal
  • Unlimited access to all our archives, 24 hour a day, every day of the week.

Authors

Affiliations

  • Department of Ophthalmology, Medical Faculty Mannheim, Ruprecht-Karls-University Heidelberg - Germany

Article usage statistics

The blue line displays unique views in the time frame indicated.
The yellow line displays unique downloads.
Views and downloads are counted only once per session.

No supplementary material is available for this article.