Adl Lens - A Novel Intraocular Lens Design To Prevent Negative Dyaphotopsia.
Published 2025 - 43rd Congress of the ESCRS
Reference: PO441 | Type: Free paper | DOI: 10.82333/dtdx-xh55
Authors: Omar Alghaith 1 , Negin Sanadgol* 1 , Ehtesham Shamsher 2 , Victor Barreiros Pungirum 3 , Tran Bao Nghi 4 , Fatemeh Khabazianzadeh 5 , Luisa de Barros Saccaro 6 , Su-yin Koay 7
1Institute of Ophthalmology,University College London,London,United Kingdom, 2John Radcliffe Hospital,Oxford,United Kingdom, 3University of Buenos Aires,Buenos Aires,Argentina, 4University of Debrecen,Debrecen,Hungary, 5Mashhad University of Medical Sciences,Mashhad,Iran, Islamic Republic Of, 6Universidade de Mogi das Cruzes,Sao Paulo,Brazil, 7Institute of Ophthalmology,University College London,London,United Kingdom;Moorfields Eye Hospital,London,United Kingdom
Purpose
To design and evaluate a new intraocular lens to prevent negative dysphotopsia in the form of temporal crescentic shadow post-cataract surgery
Setting
The most accepted theory is that the gap between the iris and optic leads to a grey-shaded area formed between ray missing IOL and ray refracted by IOL causing a temporal crescentric shadow. The new IOL is of hyperbola shape where the optic comes in contact with the pupil margin after implantation in the capsular bag thereby eliminating the space that light rays can pass through and produce negative dysphotopsia
Methods
The lens was implanted in 56 patients in whom the other operated eye had negative dysphotopsia
Results
None of the patients complained of any dysphotopsia in which ADL lens was implanted
Conclusions
This study suggests that new IOL design is effective in eliminating negative dysphotopsia