Shandong University of Traditional Chinese Medicine.
Shandong Clinical Medicine Research Center, Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine;
J Vis Exp. 2024 Sep 20(211). doi: 10.3791/67173.
The study aims to evaluate visual acuity and objective visual quality before and after the monocular bi-aspheric ablation profile for correction of presbyopia surgery. This prospective self-control study included 20 cases and 38 eyes of patients who underwent monocular bi-aspheric ablation profile correction of myopia with presbyopia at the Eye Hospital of Shandong University of Traditional Chinese Medicine from January 2023 to January 2024. These patients were selected for observation, and each patient's preoperative and postoperative uncorrected distance visual acuity (UDVA), uncorrected near visual acuity (UNVA), corrected distance visual acuity (CDVA), spherical aberration (SA) (within 6 mm), horizontal and vertical coma (within 6 mm), and corneal aspheric index (Q-value) (within 6 mm) were evaluated. Statistical data analysis was performed at different time points before and after the operation. There were statistically significant differences in UDVA between dominant and non-dominant eyes before and after surgery (Z = -3.784, p < 0.001; Z = -3.817, p < 0.001). Post-operatively, 90% of the non-dominant eyes achieved UNVA of J1 and above, and 95% of the bilateral eyes achieved UNVA of J1 and above. Significant differences were found in the SA of the dominant eyes, which showed a positive increase (Z= -3.784, p < 0.001); however, compared with the dominant eye, the SA of the non-dominant eye was negatively increased, but the difference was not statistically significant (p = 0.08). There was a significant difference in the vertical coma of the dominant eye before and after the operation, but there was no significant difference in non-dominant eyes. There was no significant difference in the change of binocular horizontal coma before and after the operation. There were significant changes in the Q value of both eyes before and after the operation (Z = -3.923, p < 0.001; Z = -3.51, p < 0.001). After the monocular bi-aspheric ablation profile, the cornea of the non-dominant eye showed a prolate shape, negative SA increased, and the UDVA and UNVA improved after the operation.
该研究旨在评估单眼双非球面消融术治疗老视患者的术前和术后视力和客观视觉质量。这项前瞻性自身对照研究纳入了 2023 年 1 月至 2024 年 1 月在山东中医药大学附属眼科医院接受单眼双非球面消融术治疗近视合并老视的 20 例（38 眼）患者。对这些患者进行观察，评估每位患者术前和术后的未矫正远视力（UDVA）、未矫正近视力（UNVA）、矫正远视力（CDVA）、球差（SA）（6mm 内）、水平彗差和垂直彗差（6mm 内）以及角膜非球面指数（Q 值）（6mm 内）。在手术前后的不同时间点进行统计数据分析。手术前后主导眼和非主导眼的 UDVA 存在统计学差异（Z=-3.784，p<0.001；Z=-3.817，p<0.001）。术后，90%的非主导眼达到 J1 及以上的 UNVA，95%的双眼达到 J1 及以上的 UNVA。主导眼的 SA 存在显著差异，表现为正性增加（Z=-3.784，p<0.001）；而非主导眼的 SA 则表现为负性增加，但差异无统计学意义（p=0.08）。主导眼的垂直彗差在手术前后存在显著差异，而非主导眼则无显著差异。双眼水平彗差在手术前后无显著变化。双眼 Q 值在手术前后均有显著变化（Z=-3.923，p<0.001；Z=-3.51，p<0.001）。单眼双非球面消融术后，非主导眼角膜呈扁长形，负性 SA 增加，术后 UDVA 和 UNVA 提高。
