Effect of intraoperative aberrometry on the rate of postoperative enhancement: Retrospective study

Packer, Mark

doi:10.1016/j.jcrs.2009.11.029

Cited by 59 publications

(32 citation statements)

References 14 publications

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“…This can be achieved using intraoperative wavefront aberrometry or eye-tracking technology. 14,25 Regarding the defocus curve, we found a V-shaped curve with 2 peaks at 0.0 D and À2. Multifocal IOLs split the available light between the distance focus and near focus.…”

Section: Complicationsmentioning

confidence: 75%

Visual outcomes and patient satisfaction after cataract surgery with toric multifocal intraocular lens implantation

Visser¹,

Nuijts²,

Vries³

et al. 2011

Journal of Cataract and Refractive Surgery

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Section: Complicationsmentioning

confidence: 75%

Visual outcomes and patient satisfaction after cataract surgery with toric multifocal intraocular lens implantation

Visser¹,

Nuijts²,

Vries³

et al. 2011

Journal of Cataract and Refractive Surgery

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“…Although the developers of the ORA Talbot–Moiré interferometry intraoperative device (WaveTec Vision, USA) claim excellent refractive outcomes,3 6 no data on the intraoperative formulae, measurement failure and reproducibility have been reported or independently validated. Furthermore, Ianchulev et al used pooled results from 66 different investigators, including fellow eyes and a range of differing IOL designs, which makes analysis and generalisation very difficult 3.…”

Section: Discussionmentioning

confidence: 99%

Intraoperative aberrometry-based aphakia refraction in patients with cataract: status and options

et al. 2016

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AimTo explore the application of intraoperative wavefront aberrometry (IWA) for aphakia-based biometry using three existing formulae derived from autorefractive retinoscopy and introducing new improved formulae. Methods In 74 patients undergoing cataract surgery, three repeated measurements of aphakic spherical equivalent (SE) were taken. All measurements were objectively graded for their quality and evaluated with the 'limits of agreement' approach. ORs were calculated and analysis of variance was applied. The intraocular lens (IOL) power that would have given the target refraction was back-calculated from manifest refraction at 3 months postoperatively. Regression analysis was performed to generate two aphakic SE-based formulae for predicting this IOL. The accuracy of the formulae was determined by comparing them to conventional biometry and published aphakia formulae. Results In 32 eyes, three consecutive aphakic measurements were successful. Objective parameters of IWA map quality significantly impacted measurement variability ( p<0.05). The limits of agreement of repeated aphakic SE readings were +0.66 dioptre (D) and −0.69 D. Intraoperative biometry by our formula resulted in 25% and 53% of all cases ±0.50D and ±1.00 D within SE target, respectively. A second formula that took axial length (AL) into account resulted in improved ratios of 41% and 70%, respectively. Conclusions A reliable application of IWA to calculate IOL power during routine cataract surgery may not be feasible given the high rate of measurement failures and the large variations of the readings. To enable reliable IOL calculation from IWA, measurement precision must be improved and aphakic IOL formulae need to be finetuned.

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“…In addition, intraoperative aberrometry now allows measurement during surgery to increase accuracy by taking into account not only the posterior corneal contribution but also the individual effect of surgically induced astigmatism in each particular eye [6].…”

Section: Astigmatism Correctionmentioning

confidence: 99%

Enhancements After Premium IOL Cataract Surgery: Tips, Tricks, and Outcomes

Packer

2013

Curr Ophthalmol Rep

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Surgeons utilize enhancement procedures following premium IOL cataract surgery to reduce or eliminate residual refractive error and improve spectacle independence for their patients. The decision to perform an enhancement and the timing of enhancement surgery are often highly individualized and depend on the expectations and specific goals of the patient. Surgeons can maximize outcomes by understanding the multiple factors impacting patient satisfaction, maintaining a commitment to effective counseling, performing meticulous pre-operative diagnostic testing, adhering to the highest standards of surgical practice and honestly evaluating their surgical results.

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Effect of intraoperative aberrometry on the rate of postoperative enhancement: Retrospective study

Abstract: The use of intraoperative wavefront aberrometry to measure and enhance the effect of LRIs produced a nonsignificant trend that led to a 5.7-fold reduction in the odds ratio of subsequent excimer laser enhancement.

Cited by 59 publications

References 14 publications

Visual outcomes and patient satisfaction after cataract surgery with toric multifocal intraocular lens implantation

Visual outcomes and patient satisfaction after cataract surgery with toric multifocal intraocular lens implantation

Intraoperative aberrometry-based aphakia refraction in patients with cataract: status and options

Enhancements After Premium IOL Cataract Surgery: Tips, Tricks, and Outcomes

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