Publications by authors named "M Leitritz"
Purpose: Our study presents a digitised tangent screen test for ocular motility analysis according to the Harms and Hess tests (measurement of the squint angle in all fields of vision). This test uses an image beamer to display the tangent screen, a position sensor to measure the patient's head orientation, and a distance sensor to measure the fixation distance. Digital measurement of head orientation allows for a test procedure that eliminates the conventional requirement for a light pointer in the patient's hand.
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- The study evaluated the safety and effectiveness of a segmented refractive bifocal intraocular lens (IOL) in patients with late-stage age-related macular degeneration (AMD), involving 20 patients over a 12-month follow-up period.
- Significant improvements in visual acuity were observed, with distance corrected near visual acuity (DCNVA) increasing from 0.95 to 0.74 logMAR and other measures like CDVA and UDVA also showing enhancement.
- The procedure had a good safety profile with no intraoperative complications, though some patients experienced changes in their visual acuity over time, indicating potential issues with the IOL for a few individuals.
Purpose: In this study, two intraocular lenses (spherical IOL SA60AT and aspherical IOL SN60WF) are examined in an eye model under conditions of misalignment (defocus, decentration and tilt). The lenses are rated using the contrast sensitivity function (CSF) based on Barten's physical model. The square root integral (SQRI) method is used as a quality criterion comparable to the subjective image quality assessment of the human eye.
View Article and Find Full Text PDFResults of different strategies to manage complicated retinal re-detachment.
Graefes Arch Clin Exp Ophthalmol
February 2021
Purpose: Complicated retinal re-detachment with inferior proliferative vitreoretinopathy (PVR) remains a challenge. This study's aim was to compare vitrectomy with conventional silicon oil (CSO) combined with an encircling band (EB) and vitrectomy with heavy silicon oil (HSO) alone to treat retinal re-detachment through inferior PVR, where standard procedures have already failed.
Methods: A retrospective analysis was done on patients with inferior complex re-detachment with secondary PVR after primary surgery, who received pars plana vitrectomy (PPV) with CSO combined with EB (group 1) or PPV alone with HSO (group 2) between December 2006 and August 2017.
Purpose: The study aimed to construct a new retinal tack design with high retention forces to prevent spontaneous disentanglement in cases of complicated retinal surgery.
Methods: Six new forms for the peak of a retinal tack were developed using computer-aided design (CAD); then a prototype was produced for each model. Finally, standardised design testing was conducted using human (ex vivo) sclera by logging 15 consecutive measurements for each model.