What is the current understanding on accommodation microflutuation?
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Accommodation microfluctuation refers to the small fluctuations in the focusing ability of the eye. Several studies have been conducted to understand and quantify these microfluctuations. The three commonly used approaches for reporting microfluctuations are the standard deviation (SD) approach, root mean square (RMS) approach, and Fourier transform (FT) analysis. A comparison of these approaches showed that the RMS approach had fewer errors and was less complicated than the SD and FT approaches . Microfluctuations in ocular biometry during steady-state accommodation have been observed using OCT, with two main frequency components identified: low-frequency component (LFC) and high-frequency component (HFC) . The relative amplitude of microfluctuations has been suggested as a better measure to understand the contribution of both accommodative and non-accommodative factors to microfluctuations . A system for measuring microfluctuations of accommodation has been developed, which includes a measuring module and a processing module . Microfluctuations in accommodation have been found to be influenced by the spatial frequency of targets, with myopes showing larger microfluctuations compared to emmetropes .
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113 Citations | The paper provides evidence that accommodation microfluctuations are used by the accommodation control system to monitor changes in the contrast gradient of the cortical image. It suggests that microfluctuations may be involved in error detection during accommodation. |
| The paper provides a system and method for measuring microfluctuation of accommodation, but it does not provide information on the current understanding of accommodation microfluctuation. | |
| The current understanding on accommodation microfluctuations is that a certain percentage of the amplitude of microfluctuations does not originate from the accommodative response. The paper suggests exploring the relative amplitude of microfluctuations to better understand the contribution of accommodative and non-accommodative factors. | |
04 Mar 2022 | The paper provides evidence of two main frequency components in mechanical fluctuations of the lens during steady-state accommodation, consistent with prior studies on microfluctuations of optical accommodation. |
| The paper provides a descriptive comparison of three reporting approaches for accommodation micro fluctuation, but it does not provide a comprehensive understanding of accommodation micro fluctuation. |
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