Palomino Bautista Carlos, Carmona González David, Castillo Gómez Alfredo, Bescos José Angel Cristóbal
Hospital Quirón, Pozuelo de Alarcón, Madrid - Spain.
Eur J Ophthalmol. 2009 Sep-Oct;19(5):762-8. doi: 10.1177/112067210901900513.
To evaluate visual performance in relation to time after implantation of the multifocal Tecnis intraocular lens (IOL) in patients with cataract.
This prospective case series involved 250 eyes of 137 patients with cataract aged 68.5+/-9.9 years. Monocular uncorrected and corrected near visual acuity (NVA and DCNVA) and distance visual acuity (UCVA and BCVA), occurrence of visual symptoms, and patient satisfaction were evaluated at 1-3 days, 30-90 days, and 150-210 days after surgery. Posterior capsule opacification and contrast sensitivity under photopic conditions were also assessed.
At the last follow-up visit, mean NVA and DCNVA was 0.215+/-0.082 and 0.189+/-0.045 logMAR, respectively. The majority of eyes (96.8%) could read J2 without correction, including 83.2% reading J1. With best distance correction, 95.6% of eyes were able to read J1. Mean UCVA and BCVA was 0.144+/-0.101 and 0.09+/-0.03 logMAR, including 77.6% and 98.4% of eyes that achieved 20/30 or better, respectively. The majority of patients (>90%) ranked their near, distance, and global vision as good or excellent and 88.4% were free from spectacles. A significant improvement of uncorrected and corrected distance and near VA as well as a decrease in the intensity of subjective photic phenomena was observed over time. At the last follow-up visit, the rate of posterior capsule opacification (grade 1) was 4.4% and mean monocular contrast sensitivity was 1.44+/-0.26.
The multifocal Tecnis IOL provides excellent near vision and good distance vision in patients with cataract. However, most patients required a neuroadaptation period of approximately 6 months to experience full visual benefits of the lens.
评估白内障患者植入多焦点Tecnis人工晶状体（IOL）后不同时间的视觉表现。
该前瞻性病例系列研究纳入了137例年龄为68.5±9.9岁的白内障患者的250只眼。在术后1 - 3天、30 - 90天和150 - 210天评估单眼未矫正及矫正近视力（NVA和DCNVA）、远视力（UCVA和BCVA）、视觉症状的发生情况以及患者满意度。还评估了后囊膜混浊和明视条件下的对比敏感度。
在最后一次随访时，平均NVA和DCNVA分别为0.215±0.082和0.189±0.045 logMAR。大多数眼（96.8%）无需矫正就能阅读J2，其中83.2%能阅读J1。在最佳远视力矫正下，95.6%的眼能够阅读J1。平均UCVA和BCVA分别为0.144±0.101和0.09±0.03 logMAR，分别有77.6%和98.4%的眼达到20/30或更好。大多数患者（>90%）将其近视力、远视力和整体视力评为良好或优秀，88.4%的患者无需佩戴眼镜。随着时间推移，未矫正及矫正的远视力和近视力有显著改善，主观光现象强度降低。在最后一次随访时，后囊膜混浊（1级）发生率为4.4%，平均单眼对比敏感度为1.44±0.26。
多焦点Tecnis IOL为白内障患者提供了出色的近视力和良好的远视力。然而，大多数患者需要约6个月的神经适应期才能充分体验该晶状体带来的视觉益处。
