Video_1_Case report: Management of recurrent pupillary optic capture with sutureless surgical technique using 7–0 polypropylene flange.MP4

BackgroundTo report a novel surgical technique for recurrent pupillary optic capture after flanged intraocular lens (IOL) fixation.MethodsIn this retrospective case series, we detail our use of two parallel 7–0 polypropylene sutures passed between the iris plane and the optic of scleral-fixated IOL to address pupillary optic capture. Flanges were created using ophthalmic cautery to secure it to the sclera without suture.ResultsTwo eyes with pupillary optic capture underwent a sutureless surgical technique using 7–0 polypropylene flanges. No recurrences of pupillary optic capture were observed during the 1-year follow-up.ConclusionOur sutureless surgical technique using a 7–0 polypropylene flange was an effective, efficient, and less invasive approach for treating recurrent pupillary optic capture.</p

Table_1_Case report: Management of recurrent pupillary optic capture with sutureless surgical technique using 7–0 polypropylene flange.DOCX

BackgroundTo report a novel surgical technique for recurrent pupillary optic capture after flanged intraocular lens (IOL) fixation.MethodsIn this retrospective case series, we detail our use of two parallel 7–0 polypropylene sutures passed between the iris plane and the optic of scleral-fixated IOL to address pupillary optic capture. Flanges were created using ophthalmic cautery to secure it to the sclera without suture.ResultsTwo eyes with pupillary optic capture underwent a sutureless surgical technique using 7–0 polypropylene flanges. No recurrences of pupillary optic capture were observed during the 1-year follow-up.ConclusionOur sutureless surgical technique using a 7–0 polypropylene flange was an effective, efficient, and less invasive approach for treating recurrent pupillary optic capture.</p

Elucidating the Chain-Extension Effect on the Exciton-Dissociation Mechanism through an Intra- or Interchain Polaron-Pair State in Push–Pull Conjugated Polymers

We elucidated chain-extension effects of a benzodithiophene (BDT) and thienopyrroledione-based push–pull conjugated polymer (CP) on its exciton-dissociation mechanism within aggregate systems using transient absoption spectroscopy. The side-group extension CP with benzothiophene on the BDT unit induced H-type excitons with excess energy owing to decreased chain stiffness. This led to interchain polaron-pair (PP)-mediated exciton dissociation. The stiff side-group extended with thienothiophene on the BDT unit also induced H-type excitons, but the decreased energy and breadth of the density of states suppressed the interchain PP-mediated exciton dissociation. The main-chain-extension CP with two thiophenes on either side of the BDT unit has a curved structure disturbing the interchain packing. Thus, the driving force of exciton dissociation between the chains decreased, leading to intrachain PP-mediated exciton dissociation. Our findings can facilitate the development of novel CPs to further increase the efficiencies of polymer solar cells