Evaluation of the Agreement Between a New Pyramid Wavefront Sensor Aberrometer and Scheiner-Smirnov Aberrometers.

Autor: Yang Y, Ning R, Xu S, Xiahou J, Li J, Savini G, Schiano-Lomoriello D, Zhou X, Huang J
Jazyk: angličtina
Zdroj: Journal of refractive surgery (Thorofare, N.J. : 1995) [J Refract Surg] 2024 Apr; Vol. 40 (4), pp. e218-e228. Date of Electronic Publication: 2024 Apr 01.
DOI: 10.3928/1081597X-20240311-02
Abstrakt: Purpose: To assess agreement between a new aberrometer (Osiris-T; CSO) employing pyramid wavefront sensor technique and Scheiner-Smirnov aberrometer (OPD-Scan III; Nidek) on measuring ocular, corneal, and internal aberrations in healthy participants.
Methods: The measurements were conducted three times consecutively by an experienced examiner. The total root mean square (RMS) aberrations, higher order aberration RMS, coma Z 3 ±1 , trefoil Z 3 ±3 , spherical aberration Z 4 0 , and astigmatism II Z 4 ±2 up to 7th order were exported in both 4-and 6-mm pupil zones. The parameters between the two devices were statistically compared using the paired t -test, and the differences assessed with Bland-Altman plots and 95% limits of agreement.
Results: This prospective study included 70 right eyes of 70 healthy participants with an average age of 25.94 ± 6.59 years (range: 18 to 47 years). The mean difference in the two devices ranged from 0.01 µm for astigmatism II Z 4 ±2 to 0.63 µm for total RMS in 4 mm and from 0.01 to 1.41 µm in 6-mm pupil size. The Bland-Altman analysis of ocular, corneal, and internal aberrations indicated high agreement between the two devices and the maximum absolute values for 95% limits of agreement ranged from 0.03 to 1.06 µm for 4-mm pupil diameters and 0.12 to 1.13 µm for 6-mm pupil diameters.
Conclusions: The newly developed pyramid wavefront sensor technique aberrometer demonstrated a high agreement with a Scheiner-Smirnov aberrometer when measuring ocular, corneal, and internal aberrations in healthy participants. Thus, the two aberrometers may be considered interchangeable for clinical applications. [ J Refract Surg . 2024;40(4):e218-e228.] .
Databáze: MEDLINE
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