Phakic intraocular lenses (pIOLs), particularly posterior chamber pIOLs, are becoming important for patients with high myopia and thin corneas. By phakic intraocular, we mean the ocular environmental conditions, where the natural lens is unremoved. A new posterior chamber pIOL, the sine wave phakic refractive lens (SW-PRL), is in the development stage, and its aqueous humor (AH) dynamics and the effects of intraocular geometry on the flow characteristics are not well understood. To analyze the adaptability and functionality of SW-PRL, a comparison study is made with its counterparts, the posterior chamber phakic refractive lens (PC-PRL), PC-PRL combined with peripheral iridotomy [PC-PRL(PI)], and implantable collamer lens with a central hole (ICL V4c). The result demonstrates that SW-PRL has a positive effect on AH flow circulation. Interestingly, there is a relationship between a posterior chamber flow and the type of pIOLs with vault variation. With an increase in vault, the flow between the lens and pIOLs slowed down after ICL V4C implantation but accelerated after PC-PRL (PI) implantation with little change after SW-PRL implantation. On the rear surface of the iris, the wall shear stress (WSS) was lower for PC-PRL(PI), SW-PRL, and ICL V4c (5.6 × 10−4, 6 × 10−3, and 8.2 × 10−3 Pa, respectively) compared to the PC-PRL (0.14 Pa), and on the front surface of lens, the WSS was lower for PC-PRL and SW-PRL (1.16 × 10−5 and 9.7 × 10−6 Pa, respectively) compared to the ICL V4c (8.2 × 10−4 Pa). WSS on the cornea surface was similar for each pIOL. These might provide a fresh viewpoint on the clinical decision of different intraocular lenses.
Skip Nav Destination
Article navigation
Research Article|
May 03 2023
Numerical simulation of aqueous flow in a novel posterior chamber phakic intraocular lens versus its counterparts
Special Collection:
Flow and the Eye
Sun Yifan (孙一凡)
;
Sun Yifan (孙一凡)
(Data curation, Formal analysis, Investigation, Software, Validation, Visualization, Writing – original draft)
1
School of Energy and Power Engineering, University of Shanghai for Science and Technology
, Shanghai 200093 China
Search for other works by this author on:
Chen Jian (陈建)
;
Chen Jian (陈建)
a)
(Conceptualization, Project administration, Supervision, Validation, Writing – review & editing)
1
School of Energy and Power Engineering, University of Shanghai for Science and Technology
, Shanghai 200093 China
a)Author to whom correspondence should be addressed: 09900589r@connect.polyu.hk
Search for other works by this author on:
Zhou Sijie (周思捷);
Zhou Sijie (周思捷)
(Conceptualization, Investigation, Project administration, Resources, Supervision)
2
Hangzhou Aijinglun Technology Co Ltd.
, Hangzhou 310000 China
Search for other works by this author on:
Jiang Yong (江勇)
Jiang Yong (江勇)
(Conceptualization, Resources)
2
Hangzhou Aijinglun Technology Co Ltd.
, Hangzhou 310000 China
Search for other works by this author on:
a)Author to whom correspondence should be addressed: 09900589r@connect.polyu.hk
Note: This paper is part of the special topic, Flow and the Eye.
Physics of Fluids 35, 053608 (2023)
Article history
Received:
January 31 2023
Accepted:
April 19 2023
Citation
Yifan Sun, Jian Chen, Sijie Zhou, Yong Jiang; Numerical simulation of aqueous flow in a novel posterior chamber phakic intraocular lens versus its counterparts. Physics of Fluids 1 May 2023; 35 (5): 053608. https://doi.org/10.1063/5.0144588
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Sign in via your Institution
Sign in via your InstitutionPay-Per-View Access
$40.00