Effect of anterior chamber depth on predictive accuracy of seven intraocular lens formulas in eyes with axial length less than 22 mm

Ankur K Shrivastava, Pranayee Behera, Rajaram Kacher, Binod KumarDepartment of Ophthalmology, All India Institute of Medical Sciences, Raipur, IndiaCorrespondence: Ankur K ShrivastavaDepartment of Ophthalmology, All India Institute of Medical Sciences, Flat No 603, Type 5A, AIIMS residential complex...

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Autores principales:	Shrivastava AK, Behera P, Kacher R, Kumar B
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2019
Materias:	Short axial length Optical biometry Anterior chamber depth Intraocular lens formulas Optimized lens constant. Ophthalmology RE1-994
Acceso en línea:	https://doaj.org/article/3b64bf88b7ca4c6585ad57206d4ffe84
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spelling	oai:doaj.org-article:3b64bf88b7ca4c6585ad57206d4ffe842021-12-02T01:54:27ZEffect of anterior chamber depth on predictive accuracy of seven intraocular lens formulas in eyes with axial length less than 22 mm1177-5483https://doaj.org/article/3b64bf88b7ca4c6585ad57206d4ffe842019-08-01T00:00:00Zhttps://www.dovepress.com/effect-of-anterior-chamber-depth-on-predictive-accuracy-of-seven-intra-peer-reviewed-article-OPTHhttps://doaj.org/toc/1177-5483Ankur K Shrivastava, Pranayee Behera, Rajaram Kacher, Binod KumarDepartment of Ophthalmology, All India Institute of Medical Sciences, Raipur, IndiaCorrespondence: Ankur K ShrivastavaDepartment of Ophthalmology, All India Institute of Medical Sciences, Flat No 603, Type 5A, AIIMS residential complex, Kabir Nagar, Raipur, Chhattisgarh 492099, IndiaTel +91 971 310 0777Email shrivastavadrankur@gmail.comPurpose: This study aimed to evaluate whether different anterior chamber depth (ACD) affects the predictive accuracy of intraocular lens formulas in eyes with axial length (AL) less than 22 mm.Methods: Eighty-five eyes of 85 patients with AL less than 22 mm were included in this retrospective study, which were divided into three groups: Group 1, ACD less than 2.4 mm; Group 2, ACD between 2.4 and 2.9 mm; and Group 3, ACD greater than 2.9 mm. Optical biometry with partial coherence interferometry was performed in all cases. The median absolute error (MedAE) was compared by Friedman’s test, using the optimized lens constant, among seven formulas (Barrett Universal II, Haigis, Hill-RBF, Hoffer Q, Holladay 1, Holladay 2, and SRK/T) in each group.Results: Friedman’s test showed no significant difference in MedAE among all formulas in Groups 1 and 3. However, as the Haigis formula had the highest MedAE and lowest percentage of eyes within ±0.25 Diopter, it is least preferred in Group 1. On the contrary, in Group 3 it fared the best, having the least MedAE and highest percentage of eyes within ±0.25 Diopter. In Group 2, Friedman’s test gave significant difference, and post-hoc analysis showed statistical superiority of Haigis over the Holladay 1 (p=0.02), Holladay 2 (p=0.01), Hill-RBF (p=0.04), and SRK/T (p=0.02) formulas. However, there was no statistical difference between the Barrett Universal II, Haigis, and Hoffer Q formulas.Conclusion: Considering the ACD in eyes with AL less than 22 mm, Haigis is the preferred formula while SRK/T proved to be the worst formula in Groups 2 and 3.Keywords: short axial length, optical biometry, anterior chamber depth, intraocular lens formulas, optimized lens constantShrivastava AKBehera PKacher RKumar BDove Medical PressarticleShort axial lengthOptical biometryAnterior chamber depthIntraocular lens formulasOptimized lens constant.OphthalmologyRE1-994ENClinical Ophthalmology, Vol Volume 13, Pp 1579-1586 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Short axial length Optical biometry Anterior chamber depth Intraocular lens formulas Optimized lens constant. Ophthalmology RE1-994
spellingShingle	Short axial length Optical biometry Anterior chamber depth Intraocular lens formulas Optimized lens constant. Ophthalmology RE1-994 Shrivastava AK Behera P Kacher R Kumar B Effect of anterior chamber depth on predictive accuracy of seven intraocular lens formulas in eyes with axial length less than 22 mm
description	Ankur K Shrivastava, Pranayee Behera, Rajaram Kacher, Binod KumarDepartment of Ophthalmology, All India Institute of Medical Sciences, Raipur, IndiaCorrespondence: Ankur K ShrivastavaDepartment of Ophthalmology, All India Institute of Medical Sciences, Flat No 603, Type 5A, AIIMS residential complex, Kabir Nagar, Raipur, Chhattisgarh 492099, IndiaTel +91 971 310 0777Email shrivastavadrankur@gmail.comPurpose: This study aimed to evaluate whether different anterior chamber depth (ACD) affects the predictive accuracy of intraocular lens formulas in eyes with axial length (AL) less than 22 mm.Methods: Eighty-five eyes of 85 patients with AL less than 22 mm were included in this retrospective study, which were divided into three groups: Group 1, ACD less than 2.4 mm; Group 2, ACD between 2.4 and 2.9 mm; and Group 3, ACD greater than 2.9 mm. Optical biometry with partial coherence interferometry was performed in all cases. The median absolute error (MedAE) was compared by Friedman’s test, using the optimized lens constant, among seven formulas (Barrett Universal II, Haigis, Hill-RBF, Hoffer Q, Holladay 1, Holladay 2, and SRK/T) in each group.Results: Friedman’s test showed no significant difference in MedAE among all formulas in Groups 1 and 3. However, as the Haigis formula had the highest MedAE and lowest percentage of eyes within ±0.25 Diopter, it is least preferred in Group 1. On the contrary, in Group 3 it fared the best, having the least MedAE and highest percentage of eyes within ±0.25 Diopter. In Group 2, Friedman’s test gave significant difference, and post-hoc analysis showed statistical superiority of Haigis over the Holladay 1 (p=0.02), Holladay 2 (p=0.01), Hill-RBF (p=0.04), and SRK/T (p=0.02) formulas. However, there was no statistical difference between the Barrett Universal II, Haigis, and Hoffer Q formulas.Conclusion: Considering the ACD in eyes with AL less than 22 mm, Haigis is the preferred formula while SRK/T proved to be the worst formula in Groups 2 and 3.Keywords: short axial length, optical biometry, anterior chamber depth, intraocular lens formulas, optimized lens constant
format	article
author	Shrivastava AK Behera P Kacher R Kumar B
author_facet	Shrivastava AK Behera P Kacher R Kumar B
author_sort	Shrivastava AK
title	Effect of anterior chamber depth on predictive accuracy of seven intraocular lens formulas in eyes with axial length less than 22 mm
title_short	Effect of anterior chamber depth on predictive accuracy of seven intraocular lens formulas in eyes with axial length less than 22 mm
title_full	Effect of anterior chamber depth on predictive accuracy of seven intraocular lens formulas in eyes with axial length less than 22 mm
title_fullStr	Effect of anterior chamber depth on predictive accuracy of seven intraocular lens formulas in eyes with axial length less than 22 mm
title_full_unstemmed	Effect of anterior chamber depth on predictive accuracy of seven intraocular lens formulas in eyes with axial length less than 22 mm
title_sort	effect of anterior chamber depth on predictive accuracy of seven intraocular lens formulas in eyes with axial length less than 22 mm
publisher	Dove Medical Press
publishDate	2019
url	https://doaj.org/article/3b64bf88b7ca4c6585ad57206d4ffe84
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Effect of anterior chamber depth on predictive accuracy of seven intraocular lens formulas in eyes with axial length less than 22 mm

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