Anterior lens capsule and epithelium thickness measurements using spectral-domain optical coherence tomographyReportar como inadecuado




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BMC Ophthalmology

, 17:94

Cataract and refractive surgery

Abstract

BackgroundTo investigate the anterior lens capsule and epithelium thickness defined as anterior lens capsular complex: ALCC in normal Chinese subjects using spectral-domian optical coherence tomography SD-OCT and examine the factors that may influence the ALCC, such as age, gender, pupil diameter PD and signal strength index SSI.

MethodsA prospective observational case series. One-hundred-thirty-four normal subjects 134 eyes were included. The ALCCs were determined manually via SD-OCT. Using the pupil center as a reference position, the central ALCC CALCC, nasal 1-mm ALCC NALCC, temporal 1-mm ALCC TALCC and PD were measured manually.

ResultsThe mean CALCC, NALCC and TALCC were 33 ± 6 μm, 36 ± 7 μm and 34 ± 6 μm, respectively. The NALCC was significantly thicker than the CALCC P < .001 and TALCC P < .001. Moreover, CALCC was significantly thinner than TALCC P = 0.013. Age was positively correlated with the CALCC r = 0.292, P < .001, NALCC r = 0.400, P < .001 and TALCC r = 0.521, P < .001. PD, gender and SSI were not significantly correlated with the three ALCC parameters.

ConclusionsThe SD-OCT can be used to demonstrate the ALCC thickness, and age is positively correlated with the ALCC in the central, nasal and temporal sides.

KeywordsAnterior lens capsular complex Pupillary diameter Optical coherence tomography Signal strength index AbbreviationsALCCAnterior lens capsular complex

CALCCCentral anterior lens capsular complex

DDiopter

ICCsIntraclass correlation coefficients

NALCCNasal anterior lens capsular complex

PDPupil diameter

SDStandard deviation

SD-OCTSpectral-domian optical coherence tomography

SSISignal strength index

TALCCTemporal anterior lens capsular complex





Autor: Jing Dong - Yading Jia - Yaqin Zhang - Haining Zhang - Zhijie Jia - Suhua Zhang - Qiang Wu - Qingmao Hu - Tianqiao Zhang

Fuente: https://link.springer.com/



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