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. 2024 Aug 28;24:382. doi: 10.1186/s12886-024-03635-y

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© The Author(s) 2024

Open Access This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License, which permits any non-commercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if you modified the licensed material. You do not have permission under this licence to share adapted material derived from this article or parts of it. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc-nd/4.0/.

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Fig. 1 — Corneal deformation during the Corvis ST measurement. The whole eye movement (WEM) was measured at a distance of 4 mm from the cornea center. (A) The cornea deforms and moves backward when the jet pulse hits the front surface of the eye. (B) From left to right: Initial state; first corneal applanation (A1); highest concavity (HC); second corneal applanation (A2). (C) Relationships among DeformAmp, DeflAmp, and WEM. Upper left of C: The blue cornea represents the initial moment, the red cornea represents the moment of HC_DeflAmp, and the yellow cornea represents the moment of WEM_Max. Since WEM is still progressing when the cornea is at its maximum deflection, HC_DeflAmp occurs before WEM_Max. Red arrow: DeformAmp; green arrow: WEM; purple arrow: DeflAmp. The red, green, and purple curves in the right panel represent DeflAmp, WEM, and DeflAmp, respectively, with WEM occurring after the complete recovery of the corneal flexure. The right side of C is a schematic of these data