Measurement of in vivo lens shapes using IOLMaster 700 B-scan images: Comparison with phakometry.
Autor: | Pradhan A; Centre for Vision and Eye Research, Optometry and Vision Science, Queensland University of Technology, Brisbane, Queensland, Australia., Hughes RPJ; Centre for Vision and Eye Research, Optometry and Vision Science, Queensland University of Technology, Brisbane, Queensland, Australia., Pieterse E; Centre for Vision and Eye Research, Optometry and Vision Science, Queensland University of Technology, Brisbane, Queensland, Australia., Atchison DA; Centre for Vision and Eye Research, Optometry and Vision Science, Queensland University of Technology, Brisbane, Queensland, Australia., Carkeet A; Centre for Vision and Eye Research, Optometry and Vision Science, Queensland University of Technology, Brisbane, Queensland, Australia. |
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Jazyk: | angličtina |
Zdroj: | Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) [Ophthalmic Physiol Opt] 2024 Jul; Vol. 44 (5), pp. 1041-1051. Date of Electronic Publication: 2024 Apr 27. |
DOI: | 10.1111/opo.13319 |
Abstrakt: | Purpose: This study compared in vivo crystalline lens shape measurements using B-scan images from the IOLMaster 700 with phakometry. Methods: Twenty-four young adult participants underwent IOLMaster 700 and phakometry measurements under cycloplegia (1% cyclopentolate). The IOLMaster 700 generated B-scan images along six meridians in 30° increments, which were analysed using custom MATLAB software to determine lens surface radii of curvature. Phakometry measurements were obtained using Purkinje images reflected from the lens surfaces. Results: The IOLMaster 700 image analysis method yielded a lower mean anterior lens surface spherical equivalent power (+6.20 D) than phakometry (+7.55 D); however, the two measurements were strongly correlated (R Conclusions: The findings demonstrate that IOLMaster 700 B-scan image analysis technique provides similar estimates of lens surface powers to phakometry. These results highlight the potential of the IOLMaster 700 to provide measurements of lens shape, informing future research and clinical use. (© 2024 The Authors. Ophthalmic and Physiological Optics published by John Wiley & Sons Ltd on behalf of College of Optometrists.) |
Databáze: | MEDLINE |
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