Accuracy of user-adjusted axial length measurements with optical biometry in eyes having combined phacovitrectomy for macular-off rhegmatogenous retinal detachment

Rubina Rahman, Simon Kolb, Chun Xiao Bong, John Stephenson

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Purpose To evaluate the accuracy of user-adjusted axial length (AL) measured by optical biometry for intraocular lens (IOL) calculations in eyes having combined phacovitrectomy for macula-off rhegmatogenous retinal detachment (RRD). Setting Ophthalmology Department, Calderdale Royal Hospital, Halifax, United Kingdom. Design Retrospective case series. Methods Consecutive eyes having phacovitrectomy for macula-off RRD were evaluated. The ALs were measured using optical biometry with user adjustment to identify a posterior peak corresponding to the eye's AL and ultrasound (US). These were compared with each other and with the postoperative optical biometry and analyzed for accuracy as an indication of the eye's AL. Results The study comprised 22 eyes of 22 patients. There was no statistically significant difference between the mean AL measurements derived from user-adjusted optical biometry and US AL (P = .964). The user-adjusted optical biometry was not statistically significantly different from the postoperative optical biometry (P = .242). Compared with the postoperative optical biometry, the IOL power was within ±0.5 diopter in 12 (92%) of 13 cases (95% confidence interval [CI], 77.8 to 100.0) for user-adjusted optical biometry and in 10 (77%) of 13 cases (95% CI, 54.0 to 99.8) for US measurements. Conclusions User-adjusted optical biometry could be used as an alternative method for measuring AL in macula-off RRD with combined phacovitrectomy. However, optical biometry would require assessment of agreement with US AL in cases in which a posterior peak is not easily identifiable. User-adjusted optical biometry might outperform US AL when calculating IOL power; however, a larger study should be performed to confirm this. Financial Disclosure None of the authors has a financial or proprietary interest in any material or method mentioned.

LanguageEnglish
Pages1009-1014
Number of pages6
JournalJournal of Cataract and Refractive Surgery
Volume42
Issue number7
DOIs
Publication statusPublished - 1 Jul 2016

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Biometry
Retinal Detachment
Intraocular Lenses
Eye Axial Length
Confidence Intervals
Social Adjustment
Disclosure
Ophthalmology

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@article{acdc8885fe464d14ab751029fa89e789,
title = "Accuracy of user-adjusted axial length measurements with optical biometry in eyes having combined phacovitrectomy for macular-off rhegmatogenous retinal detachment",
abstract = "Purpose To evaluate the accuracy of user-adjusted axial length (AL) measured by optical biometry for intraocular lens (IOL) calculations in eyes having combined phacovitrectomy for macula-off rhegmatogenous retinal detachment (RRD). Setting Ophthalmology Department, Calderdale Royal Hospital, Halifax, United Kingdom. Design Retrospective case series. Methods Consecutive eyes having phacovitrectomy for macula-off RRD were evaluated. The ALs were measured using optical biometry with user adjustment to identify a posterior peak corresponding to the eye's AL and ultrasound (US). These were compared with each other and with the postoperative optical biometry and analyzed for accuracy as an indication of the eye's AL. Results The study comprised 22 eyes of 22 patients. There was no statistically significant difference between the mean AL measurements derived from user-adjusted optical biometry and US AL (P = .964). The user-adjusted optical biometry was not statistically significantly different from the postoperative optical biometry (P = .242). Compared with the postoperative optical biometry, the IOL power was within ±0.5 diopter in 12 (92{\%}) of 13 cases (95{\%} confidence interval [CI], 77.8 to 100.0) for user-adjusted optical biometry and in 10 (77{\%}) of 13 cases (95{\%} CI, 54.0 to 99.8) for US measurements. Conclusions User-adjusted optical biometry could be used as an alternative method for measuring AL in macula-off RRD with combined phacovitrectomy. However, optical biometry would require assessment of agreement with US AL in cases in which a posterior peak is not easily identifiable. User-adjusted optical biometry might outperform US AL when calculating IOL power; however, a larger study should be performed to confirm this. Financial Disclosure None of the authors has a financial or proprietary interest in any material or method mentioned.",
author = "Rubina Rahman and Simon Kolb and Bong, {Chun Xiao} and John Stephenson",
year = "2016",
month = "7",
day = "1",
doi = "10.1016/j.jcrs.2016.04.030",
language = "English",
volume = "42",
pages = "1009--1014",
journal = "Journal of Cataract and Refractive Surgery",
issn = "0886-3350",
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number = "7",

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T1 - Accuracy of user-adjusted axial length measurements with optical biometry in eyes having combined phacovitrectomy for macular-off rhegmatogenous retinal detachment

AU - Rahman, Rubina

AU - Kolb, Simon

AU - Bong, Chun Xiao

AU - Stephenson, John

PY - 2016/7/1

Y1 - 2016/7/1

N2 - Purpose To evaluate the accuracy of user-adjusted axial length (AL) measured by optical biometry for intraocular lens (IOL) calculations in eyes having combined phacovitrectomy for macula-off rhegmatogenous retinal detachment (RRD). Setting Ophthalmology Department, Calderdale Royal Hospital, Halifax, United Kingdom. Design Retrospective case series. Methods Consecutive eyes having phacovitrectomy for macula-off RRD were evaluated. The ALs were measured using optical biometry with user adjustment to identify a posterior peak corresponding to the eye's AL and ultrasound (US). These were compared with each other and with the postoperative optical biometry and analyzed for accuracy as an indication of the eye's AL. Results The study comprised 22 eyes of 22 patients. There was no statistically significant difference between the mean AL measurements derived from user-adjusted optical biometry and US AL (P = .964). The user-adjusted optical biometry was not statistically significantly different from the postoperative optical biometry (P = .242). Compared with the postoperative optical biometry, the IOL power was within ±0.5 diopter in 12 (92%) of 13 cases (95% confidence interval [CI], 77.8 to 100.0) for user-adjusted optical biometry and in 10 (77%) of 13 cases (95% CI, 54.0 to 99.8) for US measurements. Conclusions User-adjusted optical biometry could be used as an alternative method for measuring AL in macula-off RRD with combined phacovitrectomy. However, optical biometry would require assessment of agreement with US AL in cases in which a posterior peak is not easily identifiable. User-adjusted optical biometry might outperform US AL when calculating IOL power; however, a larger study should be performed to confirm this. Financial Disclosure None of the authors has a financial or proprietary interest in any material or method mentioned.

AB - Purpose To evaluate the accuracy of user-adjusted axial length (AL) measured by optical biometry for intraocular lens (IOL) calculations in eyes having combined phacovitrectomy for macula-off rhegmatogenous retinal detachment (RRD). Setting Ophthalmology Department, Calderdale Royal Hospital, Halifax, United Kingdom. Design Retrospective case series. Methods Consecutive eyes having phacovitrectomy for macula-off RRD were evaluated. The ALs were measured using optical biometry with user adjustment to identify a posterior peak corresponding to the eye's AL and ultrasound (US). These were compared with each other and with the postoperative optical biometry and analyzed for accuracy as an indication of the eye's AL. Results The study comprised 22 eyes of 22 patients. There was no statistically significant difference between the mean AL measurements derived from user-adjusted optical biometry and US AL (P = .964). The user-adjusted optical biometry was not statistically significantly different from the postoperative optical biometry (P = .242). Compared with the postoperative optical biometry, the IOL power was within ±0.5 diopter in 12 (92%) of 13 cases (95% confidence interval [CI], 77.8 to 100.0) for user-adjusted optical biometry and in 10 (77%) of 13 cases (95% CI, 54.0 to 99.8) for US measurements. Conclusions User-adjusted optical biometry could be used as an alternative method for measuring AL in macula-off RRD with combined phacovitrectomy. However, optical biometry would require assessment of agreement with US AL in cases in which a posterior peak is not easily identifiable. User-adjusted optical biometry might outperform US AL when calculating IOL power; however, a larger study should be performed to confirm this. Financial Disclosure None of the authors has a financial or proprietary interest in any material or method mentioned.

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DO - 10.1016/j.jcrs.2016.04.030

M3 - Article

VL - 42

SP - 1009

EP - 1014

JO - Journal of Cataract and Refractive Surgery

T2 - Journal of Cataract and Refractive Surgery

JF - Journal of Cataract and Refractive Surgery

SN - 0886-3350

IS - 7

ER -