■以单眼视力散焦曲线(VADC)为主要终点,探索人工晶状体(IOL)的潜在功能分类。
■使用PubMed进行了系统的文献检索。两名独立审稿人筛选了文献以进行收录和数据提取。纳入标准是IOL的全文主要临床研究,从2010年开始以英文出版,涉及接受白内障或屈光性晶状体置换的患者。进行了聚类分析,以探索视野范围(RoF)的相似性以及从中等到近(ΔVA)的视敏度增加。
■最终从系统搜索中确定的436项研究中纳入了107项研究,通过滚雪球技术搜索增加了另外5项研究。使用包括单眼VADC的69例报告进行聚类分析。根据获得的0.2和0.3logMAR的RoF确定了两个主要类别:完全(FRoF)和部分(PRoF)RoFIOL。根据ΔVA确定了FRoF的三个子类别:连续(FRoF-C),平滑(FRoF-Sm),和陡峭(FRoF-St)。另一方面,PRoFIOL具有视力单调下降的特征,并根据实现的RoF分为两个子类别:狭窄(PRoF-N)和扩展(PRoF-Ex)。一个额外的子类别被添加到PRoF,增强(PRoF-En),对于7份报告,根据使用0.2或0.3logMAR作为计算RoF的截止值,在PRoF-N和PRoF-Ex之间交替。
■IOL可以根据单眼VADC的RoF和形状在功能上分为六种类型。[JRefractSurg.2024;40(2):e108-e116。].
UNASSIGNED: To explore a potential functional classification of intraocular lenses (IOLs) based on monocular visual acuity defocus curves (VADCs) as a primary end-point.
UNASSIGNED: A systematic literature search was conducted using PubMed. Two independent reviewers screened the literature for inclusion and data extraction. Inclusion criteria were full-text primary clinical studies of IOLs, published in English from 2010 onward, involving patients undergoing cataract or refractive lens exchange. A cluster analysis was conducted to explore similarities in the range of field (RoF) and increase of visual acuity from intermediate to near (ΔVA).
UNASSIGNED: A total of 107 studies were ultimately included from the 436 identified in the systematic search, with an additional 5 studies added through the snowballing technique search. The cluster analysis was conducted using 69 reports that included monocular VADCs. Two main categories were identified based on the achieved RoF for 0.2 and 0.3 logMAR: full (FRoF) and partial (PRoF) RoF IOLs. Three subcategories were identified for FRoF depending on ΔVA: continuous (FRoF-C), smooth (FRoF-Sm), and steep (FRoF-St). On the other hand, PRoF IOLs shared the characteristic of monotonous decrease in visual acuity and were subclassified into two subcategories depending on the achieved RoF: narrowed (PRoF-N) and extended (PRoF-Ex). An additional subcategory was added to PRoF, enhanced (PRoF-En), for 7 reports alternating between PRoF-N and PRoF-Ex depending on the use of 0.2 or 0.3 logMAR as a cut-off for calculating the RoF.
UNASSIGNED: IOLs can be functionally classified into six types depending on the RoF and shape of the monocular VADC. [J Refract Surg. 2024;40(2):e108-e116.].