The Pentacam® AXL Wave provides a reliable wavefront-based objective refraction when compared to manifest subjective refraction: A prospective study

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dc.contributor.authorBalparda, Kepaen_US
dc.contributor.authorAcevedo-Urrego, Andreaen_US
dc.contributor.authorSilva-Quintero, Laura Andreaen_US
dc.contributor.authorHerrera-Chalarca, Tatianaen_US
dc.date.accessioned2023-08-25T06:32:58Z
dc.date.available2023-08-25T06:32:58Z
dc.date.issued2022-05
dc.description.abstractPurpose: Accurate refraction is arguably the most important parameter for a successful laser vision correction surgery and is based on a combination of manifest and cycloplegic refraction. Wavefront?based objective refraction may be useful in the evaluation of patients. So far, the reliability of objective refraction as measured using the Pentacam® AXL Wave has not been published in the literature. Methods: This was a prospective study including a total of 168 eyes belonging to 84 young non?presbyopic patients evaluated for refractive surgery. Pentacam® AXL Wave full sequence was taken for all patients. Then, a clinician who was unaware of the objective refraction results performed a full physical examination, including manifest refraction starting from an autorefractometer value. All refraction values were transferred to astigmatic power vectors as per the Thibos method. Reliability of the different vectors and a unifying blur value were compared using Spearman correlation, Bland–Altman plot, and intraclass correlation coefficient. Results: The mean age was 28.8 ± 5.4 years, with a female preponderance (60.7%). The correlation between both eyes was high. The difference in M vector between subjective and objective refraction was 0.16 D, while the difference was 0.04 and 0.01 D for the J0 and J45 vectors, respectively. Paired samples Student t was non?significant for all comparisons. Spearman rho correlations were high (0.666–0.924, all P < 0.001). Intraclass correlation coefficients were also high (0.890–0.966). Bland–Altman plots did not demonstrate any systematic errors. Conclusion: Wavefront?based refractive refraction obtained using the Pentacam® AXL Wave is highly agreeable and correlated with measurements obtained by manifest subjective refraction.en_US
dc.identifier.affiliationsDirector of Research and Surgery, Black Mammoth Surgical, Medellín, Colombiaen_US
dc.identifier.affiliationsDepartment of Anesthesiology, Universidad CES, Medellín, Colombiaen_US
dc.identifier.affiliationsDepartment of Ophthalmology, Universidad CES, Medellín, Colombia Reliability of Pentacam wavefront-based refraction, Colombiaen_US
dc.identifier.affiliationsDepartment of Clinical Research, Black Mammoth Surgical, Medellín, Colombiaen_US
dc.identifier.citationBalparda Kepa, Acevedo-Urrego Andrea, Silva-Quintero Laura Andrea, Herrera-Chalarca Tatiana. The Pentacam® AXL Wave provides a reliable wavefront-based objective refraction when compared to manifest subjective refraction: A prospective study. Indian Journal of Ophthalmology. 2022 May; 70(5): 1533-1537en_US
dc.identifier.issn1998-3689
dc.identifier.issn0301-4738
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/224298
dc.languageenen_US
dc.publisherAll India Ophthalmological Societyen_US
dc.relation.issuenumber5en_US
dc.relation.volume70en_US
dc.source.urihttps://doi.org/10.4103/ijo.IJO_3006_21en_US
dc.subjectObjective refractionen_US
dc.subjectpentacamen_US
dc.subjectrefractive surgical proceduresen_US
dc.subjectsubjective refractionen_US
dc.titleThe Pentacam® AXL Wave provides a reliable wavefront-based objective refraction when compared to manifest subjective refraction: A prospective studyen_US
dc.typeJournal Articleen_US
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