This study aimed to evaluate the quality of life and the satisfaction level of Brazilian and Chinese patients who underwent cataract surgery for Acysof IQ PanOptix Model TFNT00 (Alcon Laboratories, Fort Worth, TX) implantation. This retrospective study enrolled 51 patients from China and 51 patients from Brazil. At the 3-month follow-up, uncorrected distance visual acuity (UDVA) at 5m, uncorrected intermediate visual acuity (UIVA) at 60cm, and uncorrected near visual acuity (UNVA) at 40cm were evaluated; Catquest 9SF and the Near Activity Visual Questionnaire (NAVQ) were administered to the patients. The results revealed that the Brazilian patients gained better UDVA and UNVA (p<0.001), while the Chinese patients gained better UIVA (p = 0.001). With regards to the patients’ overall satisfaction with their current vision, the Brazilian patients scored higher (p = 0.002). In situations related to distant and near vision, the Brazilian patients scored higher, while in situations related to intermediate vision, the Chinese patients scored higher. No differences were found between the gender or age subgroups, but the normal axial length (AL) subgroup showed the highest level of satisfaction (p = 0.002). The patients implanted with TFNT00 IOL obtained excellent objective and subjective outcomes in both cultures. The Brazilian patients showed higher satisfaction with their distant and near vision, while the Chinese patients were more satisfied with their intermediate vision.
Purpose To observe the distribution characteristics of corneal higher-order aberrations (HOAs) in cataract patients, and analyze the relationship of HOAs with patients’ age and ocular biometric parameters. Methods This retrospective study reviews the patients with cataract in Wuhan Aier Eye Department from January to August 2022. Root mean square (RMS) of the total HOA (tHOA), spherical aberration (SA), coma and trefoil aberration of the anterior cornea at central 4 and 6 mm optic zone were measured by the Wavefront Aberrometer (OPD-Scan III; Nidek Inc, Tokyo, Japan). The biometric parameters including axial length (AL), keratometry (K), central corneal thickness (CCT) and lens thickness (LT) were measured by swept-source coherence laser interferometry (OA-2000; TOMEY Corp, Aichi, Japan). Subgroup analyses and multiple linear regression analyses were used to determine whether HOAs were associated with age and ocular biometric parameters. Results A total of 976 patients (976 eyes) were included, averagely aged 65 years. At central 4 and 6 mm optic zone, the mean RMS of tHOA were respectively 0.20 and 0.65 μm, the SA were 0.06 and 0.30 μm, the coma aberration were 0.11 and 0.35 μm, and the trefoil aberration were 0.12 and 0.30 μm. The tHOA decreased with age until 60 years and then started to increase afterwards. The tHOA, coma and trefoil aberration increased with corneal astigmatism. The tHOA, SA, and coma aberration differ among different AL groups, and emmetropes had the smallest tHOA, SA, and coma aberration. Conclusions With increasing age, the value of tHOA decrease first and started increasing at 60 years. The trends of corneal HOAs are consistent with corneal low-order aberrations. The values of tHOA, SA and coma aberration were the smallest in emmetropic eyes.
Purpose To evaluate intraocular lens (IOL) constant optimization in toric IOL calculation with keratometry (K) and total corneal refractive power (TCRP). Methods Predicted spherical equivalent (SE) and residual astigmatism (RA) with K and TCRP were retrospectively calculated using the Haigis, Holladay 1, and SRK/T formulae and optimized IOL constants. The results of the Barrett calculator and the Abulafia–Koch formula with K were also calculated. The median absolute error in SE (MedAE-SE), mean absolute error in RA (MAE-RA), and centroid error (CE) were analyzed. Results Seventy-nine eyes of 71 patients implanted with toric IOLs were included. With K, there were no significant differences between the results before and after constant optimization using all the formulae. With TCRP, constant optimization significantly reduced MedAE-SE; however, significantly increased MAE-RA and CE using the Holladay 1 and SRK/T formulae. MedAE-SE, MAE-RA, and CE using the Haigis formula did not show significant differences. The difference in the predicted RA before and after constant optimization increased with IOL toricity. The MedAE-SE predicted by TCRP was significantly higher than that predicted by K despite constant optimization. The MAE-RA and CE predicted by TCRP were significantly lower than those predicted by K without posterior corneal astigmatism optimization; however, were not significantly different from those predicted by the Barrett and Abulafia-Koch formulae. Conclusions Constant optimization is recommended when using the TCRP in toric IOL calculations, particularly for patients with large astigmatism. However, TCRP did not yield more accurate results than optimized K in toric IOL calculations despite constant optimization.
To evaluate the tolerance of refractive errors and visual outcomes of extended depth of focus intraocular lens (EDOF IOLs) in patients with previous corneal refractive surgery for myopia. MethodsPatients from Wuhan Aier Eye Hospital with previous myopia excimer laser correction underwent cataract surgery and implantation of an EDOF IOL. The follow-up period was three months. The uncorrected distance, intermediate, and near visual acuities (UDVA, UIVA, UNVA), corrected distance visual acuity (CDVA), spherical equivalent (SE), defocus curve, optical quality, including modulation transfer functions (MTF) and Strehl ratio (SR), National Eye Institute Visual Functioning Questionnaire-14 for Chinese people (VF-14-CN), spectacle independence, and dysphotopsia were assessed. ResultsAt the nal visit, UDVA, CDVA, UIVA, and UNVA (logMAR) were 0.07 ± 0.09, 0.01 ± 0.04, 0.10 ± 0.08, 0.20 ± 0.11, respectively. The mean spherical equivalent (SE) was ± 0.75 ± 0.49D, where 42% (21 eyes) were within ± 0.50D, 70% (35 eyes) were within ± 1.00D, and 98% (49 eyes) were within ± 1.50D. The defocus curve showed that visual acuity could reach 0.1 in the refractive range of 0 ~ -1.5D. SR and MTF values of 10,15,20, 35, and 30 c/d spatial frequency were measured with a 3 mm pupil diameter after removing the in uence of low-order aberrations, which were all higher than the values before the operation. The mean VF-14-CN questionnaire score was 51.02 ± 2.95 out of 56. ConclusionThe EDOF IOLs have a certain tolerance for refractive errors, and they are recommended for patients with prior myopia excimer laser surgery to achieve satisfactory visual performance.What Was Learned 1. EDOF IOLs can provide excellent visual outcomes and high patient satisfaction.2. EDOF IOLs have a certain tolerance to residual postoperative refractive errors.3. The accurate calculation of IOL power after refractive laser surgery is di cult.
Purpose: To observe the distribution characteristics of corneal higher-order aberrations (HOAs) in cataract patients, and analyze the relationship of HOAs with patients' age and ocular biometric parameters. Methods: This cross-sectional study review the patients undergoing cataract surgery in Wuhan Aier Eye Department from January to August 2022. Root mean square (RMS) of the total corneal HOA, spherical aberration (SA), coma and trefoil aberration for a corneal central region of 4mm and 6mm were measured by the Wavefront Aberrometer (OPD-Scan III; Nidek Inc, Tokyo, Japan). The biometric parameters were measured by swept source coherence laser interferometry (OA-2000; TOMEY Corp, Aichi, Japan). Subgroup analyses and multiple linear regression analyses were used to determine whether HOAs were associated with age and ocular biometric parameters. Results: A total of 976 patients (976 eyes) were included, averagely aged 65 years. The mean RMS of total corneal HOA at central 4mm and 6mm optic zone were respectively 0.20μm and 0.65μm, the RMS of SA were 0.06μm and 0.30μm. Total HOA decreased with age until 60 years and then started to increase afterwards. Total HOA, coma and trefoil aberration increased with corneal astigmatism. Total HOA, SA, and coma aberration differ among different AL groups, and emmetropes had the smallest aberration. Conclusions: With increasing age, the value of total HOA decrease first and started increasing at 60 years. The trends of corneal HOAs are consistent with corneal low-order aberrations. The values of total HOA, SA and coma aberration were the smallest in emmetropic eyes.
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