The theory of critical flicker fusion frequency and its application in cataracts  

作　　者：Guangcan Xu Junxia Fu Haolan Qi Linyu Li Wenqian Chen Yi Gao Tianju Ma Zi Ye Zhaohui Li 

机构地区：[1]School of Medicine,Nankai University,Tianjin,China [2]Department of Ophthalmology,The Third Medical Center,The Chinese People's Liberation Army General Hospital,Beijing,China [3]Department of Ophthalmology,Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine,Shanghai,China [4]The Chinese People's Liberation Army Medical School,Beijing,China

出　　处：《Advances in Ophthalmology Practice and Research》2023年第1期29-32,共4页眼科实践与研究新进展（英文）

基　　金：the Program of National Natural Science Foundation of China(No.82070937)(No.81870640);National Natural Science Foundation for Young Scientists of China(No.82000923)(No.82101097).

摘　　要：Background:Due to media opacity,it is usually difficult to accurately evaluate the postoperative visual acuity in cataracts patients.As a small and portable tool,the critical flicker fusion frequency(CFF)device reflects the temporal resolution of visual function and has been widely used in clinical research.However,poor understanding of the technique and equipment limitations have restricted its clinical application in China.Main text:There was a decrease in the CFF value in various ophthalmic diseases,indicating that the CFF is sensitive to detect visual functional changes.A number of studies have shown that the CFF test can accurately distinguish patients with simple cataracts from those with cataracts combined with fundus disease,and,as a visual test,it can more accurately predict postoperative visual acuity without being affected by media opacity.This study comprehensive reviews the basic principles of CFF and its application in ophthalmology,especially in cataracts.Conclusions:As one of the tools for dynamic visual function detection,the CFF test could help doctors to assess the possible presence of fundus disease in cataracts patients,especially in eyes with dense cataracts,and more precisely provide a reasonable visual prognosis than other available visual tests.

关 键 词：Critical flicker fusion frequency CATARACTS REVIEW 

分 类 号：R779.6[医药卫生—眼科]