Limbal relaxing incisions versus on-axis incisions to reduce corneal astigmatism at the time of cataract surgery

Simple item page
dc.contributor.authorKaufmann, C.
dc.contributor.authorPeter, J.
dc.contributor.authorOoi, K.
dc.contributor.authorPhipps, S.
dc.contributor.authorCooper, P.
dc.contributor.authorGoggin, M.
dc.date.issued2005
dc.description.abstractPURPOSE: To compare limbal relaxing incisions (LRIs) with placement of the corneal cataract incision on the steepest keratometric axis for the reduction of preexisting corneal astigmatism at the time of cataract surgery. SETTING: The Queen Elizabeth Hospital, Adelaide, South Australia, Australia. METHODS: In a prospective single center study, patients having 1.5 diopters (D) or more of keratometric astigmatism were randomly assigned to 2 surgical techniques: on-axis incisions (OAIs) consisting of a single clear corneal cataract incision centered on the steepest corneal meridian or LRIs consisting of 2 arcuate incisions straddling the steepest corneal meridian and a temporal clear corneal incision. Vector analysis of the target axis flattening effect was used to assess the efficacy of treatment. RESULTS: Seventy-one eyes of 71 patients were evaluated, 33 in the OAI group and 38 in the LRI group. Six weeks postoperatively, the flattening effect was 0.41 D (median and interquartile range 0.15 to 0.78 D) in the OAI group and 1.21 D (range 0.43 to 2.25 D) in the LRI group (P = .002). After 6 months, the flattening effect was 0.35 D (range 0.00 to 0.96 D) and 1.10 D (range 0.25 to 1.79 D), respectively (P = .004). CONCLUSION: The amount of astigmatism reduction achieved at the intended meridian was significantly more favorable with the LRI technique, which remained consistent throughout the follow-up period.
dc.description.statementofresponsibilityClaude Kaufmann, Jayanthi Peter, Kenneth Ooi, Simon Phipps, Peter Cooper and Michael Goggin
dc.identifier.citationJournal of Cataract and Refractive Surgery, 2005; 31(12):2261-2265
dc.identifier.doi10.1016/j.jcrs.2005.08.046
dc.identifier.issn0886-3350
dc.identifier.issn1873-4502
dc.identifier.urihttp://hdl.handle.net/2440/16664
dc.language.isoen
dc.publisherAmer Soc Cataract Refractive Surgery
dc.rightsCopyright © 2005 ASCRS and ESCRS Published by Elsevier Inc.
dc.source.urihttps://www.sciencedirect.com/science/article/abs/pii/S0886335005007583
dc.subjectQueen Elizabeth Astigmatism Study Group
dc.subjectLimbus Corneae
dc.subjectHumans
dc.subjectAstigmatism
dc.subjectCataract Extraction
dc.subjectLens Implantation, Intraocular
dc.subjectProspective Studies
dc.subjectVisual Acuity
dc.subjectAged
dc.subjectAged, 80 and over
dc.subjectFemale
dc.subjectMale
dc.titleLimbal relaxing incisions versus on-axis incisions to reduce corneal astigmatism at the time of cataract surgery
dc.typeJournal article
pubs.publication-statusPublished

Files

Collections

Surgery publications