在长轴长度眼睛中,内眼内透镜固定后的折射预测错误
Masaki Suzue1, So Goto1, Susumu Sakimoto1,2
1Department of Ophthalmology, Graduate School of Medicine, The University of Osaka, Suita, Osaka, Japan.
Journal of cataract and refractive surgery
|February 26, 2026
概括
巴雷特通用II公式显示,在横内眼镜 (IOL) 固定后,对长轴长度眼睛的折射预测准确度最好. 像Holladay 1这样的其他公式存在系统错误,尽管在长眼中看起来准确.
科学领域:
- 眼科医生 眼科 眼科
- 折射手术是一种折射手术.
- 生物医学工程 生物医学工程
背景情况:
- 精确的眼内镜 (IOL) 功率计算对于白内障手术后成功的折射结果至关重要.
- 长轴长度 (AL) 眼睛对IOL功率计算公式提出了独特的挑战.
- 侧翼内膜内膜眼镜固定 (SF-IOL) 是一种用于内膜眼镜植入的技术,特别是在复杂的情况下.
研究的目的:
- 评估和比较标准IOL功率计算公式在眼睛中的折射预测准确度,用长AL接受SF-IOL.
- 确定最可靠的公式,以优化这一特定患者队列的折射结果.
主要方法:
- 追溯观察队列研究,包括接受SF-IOL的眼睛.
- 眼睛被分为正常AL (<26.0毫米) 和长AL (≥26.0毫米) 组.
- 四种公式的折射预测误差 (PE) 和准确性 (Barrett Universal II,Hoffer Q,Holladay 1,SRK/T) 使用根平均平方绝对误差 (RMSAE) 和公式性能指数 (FPI) 进行了评估.
主要成果:
- 分析了53只眼睛,18只被归类为长AL (平均AL 27.1±1.0毫米).
- 巴雷特通用II公式在所有眼睛中显示了最低的RMSAE和最高的FPI,表明整体预测准确度优越.
- 虽然Holladay 1在长AL组中显示PE接近于零,但其表现的特点是的AL-PE回归斜率和低的FPI,表明系统偏差而不是真正的准确性.
结论:
- 巴雷特通用II公式是最准确的预测SF-IOL植入后长AL眼中的折射结果.
- 由于长AL眼中的系统偏移,像Holladay 1这样的公式可能看起来准确,但它们的整体性能和可靠性较低.
- 这些发现强调了根据AL选择适当的IOL计算公式的重要性,以优化手术结果.
更多相关视频
05:46Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
Published on: September 20, 2024
847
04:59Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation
Published on: July 7, 2023
3.1K
相关概念视频
Focusing of Light in the Eye
6.7K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
6.7K
Glaucoma: Overview
1.5K
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
1.5K
Angle Closure Glaucoma: Treatment
1.4K
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
1.4K
Open Angle Glaucoma: Treatment
1.1K
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
1.1K
