000132405 001__ 132405
000132405 005__ 20250924073308.0
000132405 0247_ $$2doi$$a10.1080/08164622.2024.2302832
000132405 0248_ $$2sideral$$a137528
000132405 037__ $$aART-2024-137528
000132405 041__ $$aeng
000132405 100__ $$0(orcid)0000-0002-6591-0801$$aOtin Mallada, Sofia$$uUniversidad de Zaragoza
000132405 245__ $$aUsing clinical optical coherence tomography to characterise contact lens edge shape and base curve radius
000132405 260__ $$c2024
000132405 5060_ $$aAccess copy available to the general public$$fUnrestricted
000132405 5203_ $$aClinical relevance: Clinical optical coherence tomography devices are widely used in optometry and ophthalmology and may be used to measure contact lens base curvature radius and visualise contact lens edge shape. Background: Knowledge of contact lens geometry facilitates fitting, while optical coherence tomography provides a powerful means of measuring geometrical form. This study evaluates the performance of a clinical optical coherence tomography device (3D OCT-1000) in characterising contact lens edge shape and measuring the back optic zone radius of rigid gas-permeable contact lenses in vitro. Methods: First, an opto-mechanical optical coherence tomography contact lens adaptor was designed and 3D-printed to facilitate a contact lens being imaged using a commercial optical coherence tomography device. Second, several image-processing algorithms and a simple calibration method were developed to measure the back optic zone radius in optical coherence tomography B-scans. Finally, based on the findings of two experiments, B-scan performance was evaluated in terms of 1) capacity to differentiate between contact lens edge geometries, and 2) capacity to obtain accurate and repeatable back optic zone radius measurements. Statistical and graphical analyses were performed to characterise reliability and reproducibility. Results: The 3D OCT-1000 and adaptor combination was capable of acquiring images of sufficient quality to discriminate between soft and rigid contact lens edge geometries. Additionally, statistical analysis of the rigid contact lens measurements demonstrated satisfactory back optic zone radius measurement accuracy and reproducibility. Conclusion: This study demonstrates that a 3D OCT-1000 fitted with an opto-mechanical adaptor combination can be used to assess contact lens edges in vitro and that this clinical optical coherence tomography device, combined with image processing and linear calibration of the B-scans, is capable of obtaining back optic zone radius measurements of rigid gas-permeable contact lenses that are close to the ISO 18,369-2:2018 manufacturing tolerance range (±0.05 mm).
000132405 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FEDER/E44-20R$$9info:eu-repo/grantAgreement/ES/MICIU/PID2020-114311RA-I00
000132405 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000132405 590__ $$a1.5$$b2024
000132405 592__ $$a0.624$$b2024
000132405 591__ $$aOPHTHALMOLOGY$$b59 / 98 = 0.602$$c2024$$dQ3$$eT2
000132405 593__ $$aOptometry$$c2024$$dQ2
000132405 593__ $$aOphthalmology$$c2024$$dQ2
000132405 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000132405 700__ $$aGargallo Yebra, Diana$$uUniversidad de Zaragoza
000132405 700__ $$aTolón Zardoya, Nerea
000132405 700__ $$0(orcid)0000-0002-1124-0363$$aAres García, Jorge$$uUniversidad de Zaragoza
000132405 7102_ $$12002$$2647$$aUniversidad de Zaragoza$$bDpto. Física Aplicada$$cÁrea Óptica
000132405 773__ $$g108, 1 (2024), 40-48$$pClinical and Experimental Optometry$$tClinical and Experimental Optometry$$x0816-4622
000132405 8564_ $$s2066048$$uhttps://zaguan.unizar.es/record/132405/files/texto_completo.pdf$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2025-01-15
000132405 8564_ $$s1894104$$uhttps://zaguan.unizar.es/record/132405/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint$$zinfo:eu-repo/date/embargoEnd/2025-01-15
000132405 909CO $$ooai:zaguan.unizar.es:132405$$particulos$$pdriver
000132405 951__ $$a2025-09-22-14:31:04
000132405 980__ $$aARTICLE