Evaluation Of Tilt And Decentration Using Optical Coherence Tomography And Purkinje Meter
Published 2024 - 42nd Congress of the ESCRS
Reference: PO542 | Type: Free paper | DOI: 10.82333/gxre-9g19
Authors: Andreea Fisus* 1 , Manuel Ruiss 1 , Caroline Pilwachs 1 , Natascha Bayer 1 , Martin Kronschläger 1 , Oliver Findl 1
1Ophthamology,Vienna Institute for Research in Ocular Surgery - A Karl-Landsteiner-Institute Hanusch Hospital,Vienna,Austria
Purpose
In previous studies, ultrasound biomicroscopy, Purkinje reflection, Scheimpflug imaging, and anterior segment OCT have been used to measure crystalline lens/IOL tilt and decentration. Swept-source OCT devices offer whole-eye OCT scans and can determine crystalline lens and IOL tilt with reference.
Purpose: Aim of this study is evaluate crystalline lens and intraocular lens (IOL) tilt using three optical coherence tomography devices and compare the results with Purkinje meter.
Setting
Vienna Institute for Research in Ocular Surgery, Hanusch Hospital, Vienna, Austria
Methods
50 eyes of 50 patients planed for cataract surgery and without ocular comorbidities were included, 10 patients with axial length over 25.5mm. All patients underwent measurements in a random fashion with three anterior segment OCT devices (Casia2, Tomey; Anterion, Heidelberg Engineering; MS-39, CSO) and Purkinje meter. For the repeatability analysis, each patient was measured three times with each device. The same type of IOL was implanted for all the patients. The patients were measured preoperatively and 1 month after cataract surgery.
Results
Preliminary results are available. The mean arithmetic difference between Casia2 and Purkinje meter in postoperative decentration was -0.01 ± 0.37 mm and for tilt was 0.77 ± 1.97° Final results between Anterion and MS-39 will be presented.
Conclusions
A good correlation was found between Purkinje meter and Casia2.