The outcome measures included uncorrected distance visual acuity (UDVA), CDVA, manifest refraction, and wavefront aberrations. Routine examinations, like slit-lamp examination, rotating Scheimpflug camera imaging (Pentacam, Oculus GmbH), were also preformed.
Postoperative time points included 1, 3, 6 months and 1, 2, 4 years postoperatively.
Wavefront aberrations were measured with a Hartmann–Shack WASCA aberrometer (Carl Zeiss Meditec AG) with a 6.0 mm pupil using sixth order Zernike polynomials. The root mean square (RMS) of higher-order aberrations (HOAs), spherical aberration, coma, higher-order astigmatism, trefoil and tetrafoil was calculated. Only measurements in eyes with a pupil of 6.0 mm or larger were included. Thus, the aberration measurements of thirty-seven eyes for 1, 6 months and 4 years postoperatively were collected.
The Chinese version of the QIRC questionnaire was completed by Xu Congyi et al. [18 ] and showed favorable repeatability and validity. The QIRC questionnaire was used to assess the quality of life of the spectacles group and the surgery group at the last follow-up.
Postoperative time points included 1, 3, 6 months and 1, 2, 4 years postoperatively.
Wavefront aberrations were measured with a Hartmann–Shack WASCA aberrometer (Carl Zeiss Meditec AG) with a 6.0 mm pupil using sixth order Zernike polynomials. The root mean square (RMS) of higher-order aberrations (HOAs), spherical aberration, coma, higher-order astigmatism, trefoil and tetrafoil was calculated. Only measurements in eyes with a pupil of 6.0 mm or larger were included. Thus, the aberration measurements of thirty-seven eyes for 1, 6 months and 4 years postoperatively were collected.
The Chinese version of the QIRC questionnaire was completed by Xu Congyi et al. [18 ] and showed favorable repeatability and validity. The QIRC questionnaire was used to assess the quality of life of the spectacles group and the surgery group at the last follow-up.