Accuracy of IOL calculations in children

A comparison of immersion versus contact A-scan biometery

Itay Ben-Zion, Daniel Neely, David Plager, Susan Ofner, Derek T. Sprunger, Gavin J. Roberts

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Purpose: To evaluate the accuracy of pediatric IOL calculations performed under general anesthesia by using immersion A-scan biometry and to compare the results to those obtained using contact A-scan biometry. Methods: A retrospective review of 203 consecutive cases of pediatric cataract extraction with primary IOL implantation within the capsular bag; mean patient age was 5.52 ± 4.19 years (range, 18 days to 18 years). Axial length measurements were performed with the contact A-scan biometry in 138 eyes, whereas immersion technique biometry was used in the remaining consecutive 65 eyes. Preoperative predictive target refraction was compared with the refractive result obtained at the 2-month postoperative visit. Results: The mean of the absolute value lens prediction error for all eyes was 1.08 ± 0.93 D from the desired postoperative refractive result. Lens prediction error for the contact A-scan subgroup was 1.11 ± 0.90 D, whereas the immersion A-scan subgroup was less at 1.03 ± 0.98 D. This result was not statistically significant (p = 0.6442). Statistically significant correlations were found between increased lens prediction error and age at time of surgery or corneal curvature. Conclusions: This retrospective, noncomparative pilot study showed no significant difference in IOL prediction error when comparing the postoperative refractive results obtained with immersion versus contact A-scan biometry in pediatric IOL calculations.

Original languageEnglish
Pages (from-to)440-444
Number of pages5
JournalJournal of AAPOS
Volume12
Issue number5
DOIs
StatePublished - Oct 2008

Fingerprint

Biometry
Immersion
Lenses
Pediatrics
Cataract Extraction
General Anesthesia

ASJC Scopus subject areas

  • Ophthalmology
  • Pediatrics, Perinatology, and Child Health

Cite this

Accuracy of IOL calculations in children : A comparison of immersion versus contact A-scan biometery. / Ben-Zion, Itay; Neely, Daniel; Plager, David; Ofner, Susan; Sprunger, Derek T.; Roberts, Gavin J.

In: Journal of AAPOS, Vol. 12, No. 5, 10.2008, p. 440-444.

Research output: Contribution to journalArticle

Ben-Zion, Itay ; Neely, Daniel ; Plager, David ; Ofner, Susan ; Sprunger, Derek T. ; Roberts, Gavin J. / Accuracy of IOL calculations in children : A comparison of immersion versus contact A-scan biometery. In: Journal of AAPOS. 2008 ; Vol. 12, No. 5. pp. 440-444.
@article{5248258335b04ef9b7a137fa3759e2e3,
title = "Accuracy of IOL calculations in children: A comparison of immersion versus contact A-scan biometery",
abstract = "Purpose: To evaluate the accuracy of pediatric IOL calculations performed under general anesthesia by using immersion A-scan biometry and to compare the results to those obtained using contact A-scan biometry. Methods: A retrospective review of 203 consecutive cases of pediatric cataract extraction with primary IOL implantation within the capsular bag; mean patient age was 5.52 ± 4.19 years (range, 18 days to 18 years). Axial length measurements were performed with the contact A-scan biometry in 138 eyes, whereas immersion technique biometry was used in the remaining consecutive 65 eyes. Preoperative predictive target refraction was compared with the refractive result obtained at the 2-month postoperative visit. Results: The mean of the absolute value lens prediction error for all eyes was 1.08 ± 0.93 D from the desired postoperative refractive result. Lens prediction error for the contact A-scan subgroup was 1.11 ± 0.90 D, whereas the immersion A-scan subgroup was less at 1.03 ± 0.98 D. This result was not statistically significant (p = 0.6442). Statistically significant correlations were found between increased lens prediction error and age at time of surgery or corneal curvature. Conclusions: This retrospective, noncomparative pilot study showed no significant difference in IOL prediction error when comparing the postoperative refractive results obtained with immersion versus contact A-scan biometry in pediatric IOL calculations.",
author = "Itay Ben-Zion and Daniel Neely and David Plager and Susan Ofner and Sprunger, {Derek T.} and Roberts, {Gavin J.}",
year = "2008",
month = "10",
doi = "10.1016/j.jaapos.2008.03.016",
language = "English",
volume = "12",
pages = "440--444",
journal = "Journal of AAPOS",
issn = "1091-8531",
publisher = "Mosby Inc.",
number = "5",

}

TY - JOUR

T1 - Accuracy of IOL calculations in children

T2 - A comparison of immersion versus contact A-scan biometery

AU - Ben-Zion, Itay

AU - Neely, Daniel

AU - Plager, David

AU - Ofner, Susan

AU - Sprunger, Derek T.

AU - Roberts, Gavin J.

PY - 2008/10

Y1 - 2008/10

N2 - Purpose: To evaluate the accuracy of pediatric IOL calculations performed under general anesthesia by using immersion A-scan biometry and to compare the results to those obtained using contact A-scan biometry. Methods: A retrospective review of 203 consecutive cases of pediatric cataract extraction with primary IOL implantation within the capsular bag; mean patient age was 5.52 ± 4.19 years (range, 18 days to 18 years). Axial length measurements were performed with the contact A-scan biometry in 138 eyes, whereas immersion technique biometry was used in the remaining consecutive 65 eyes. Preoperative predictive target refraction was compared with the refractive result obtained at the 2-month postoperative visit. Results: The mean of the absolute value lens prediction error for all eyes was 1.08 ± 0.93 D from the desired postoperative refractive result. Lens prediction error for the contact A-scan subgroup was 1.11 ± 0.90 D, whereas the immersion A-scan subgroup was less at 1.03 ± 0.98 D. This result was not statistically significant (p = 0.6442). Statistically significant correlations were found between increased lens prediction error and age at time of surgery or corneal curvature. Conclusions: This retrospective, noncomparative pilot study showed no significant difference in IOL prediction error when comparing the postoperative refractive results obtained with immersion versus contact A-scan biometry in pediatric IOL calculations.

AB - Purpose: To evaluate the accuracy of pediatric IOL calculations performed under general anesthesia by using immersion A-scan biometry and to compare the results to those obtained using contact A-scan biometry. Methods: A retrospective review of 203 consecutive cases of pediatric cataract extraction with primary IOL implantation within the capsular bag; mean patient age was 5.52 ± 4.19 years (range, 18 days to 18 years). Axial length measurements were performed with the contact A-scan biometry in 138 eyes, whereas immersion technique biometry was used in the remaining consecutive 65 eyes. Preoperative predictive target refraction was compared with the refractive result obtained at the 2-month postoperative visit. Results: The mean of the absolute value lens prediction error for all eyes was 1.08 ± 0.93 D from the desired postoperative refractive result. Lens prediction error for the contact A-scan subgroup was 1.11 ± 0.90 D, whereas the immersion A-scan subgroup was less at 1.03 ± 0.98 D. This result was not statistically significant (p = 0.6442). Statistically significant correlations were found between increased lens prediction error and age at time of surgery or corneal curvature. Conclusions: This retrospective, noncomparative pilot study showed no significant difference in IOL prediction error when comparing the postoperative refractive results obtained with immersion versus contact A-scan biometry in pediatric IOL calculations.

UR - http://www.scopus.com/inward/record.url?scp=53049083889&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=53049083889&partnerID=8YFLogxK

U2 - 10.1016/j.jaapos.2008.03.016

DO - 10.1016/j.jaapos.2008.03.016

M3 - Article

VL - 12

SP - 440

EP - 444

JO - Journal of AAPOS

JF - Journal of AAPOS

SN - 1091-8531

IS - 5

ER -