Long-term Results of Two Surgical Methods for Scleral IOL Implantation and Fixation in Eyes Without Capsular Support: Yamane- Versus 4-flanged Technique
Medical University of Vienna
100 participants
Sep 19, 2023
INTERVENTIONAL
Conditions
Summary
This study is a comparison of the surgical techniques and postoperative outcome between the two intrascleral IOL fixation techniques: Yamane technique versus the 4-flanged technique. The main objectives are postoperative lens tilt, duration of surgery, intra- and postoperative complication rates and scleral integrity around the flanges.
Eligibility
Inclusion Criteria2
- \- Necessity for IOL (re)fixation in the absence of capsular support
- willing to give informed consent and follow-up the duration of study
Exclusion Criteria2
- Anatomical or other contraindications for suture less IOL fixation, such as presence of a trabeculectomy bleb or scleromalacia
- active inflammatory diseases of the eye
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Interventions
25gauge pars plana vitrectomy: to remove the vitreous if present
Removing if present a subluxated IOL from the anterior chamber or the vitreous cavity
Scleral IOL fixation using the Yamane technique. A 3 piece IOL (Kowa Avansee Preset) gets fixated in the sclera using only its haptics, which are externalised 2.5mm behind the blue line. The haptic ends are flanged using a thermo cautery to prevent slipping back in.
Scleral IOL fixation using the 4 flanged technique. A 4 loop haptic IOL (Physical Micropure 123) gets fixated in the sclera using one 6.0 polypropylene suture per 2 haptic loops, which are put trough the loops in a W shape. The suture ends are externalised 2.5mm behind the blue line and its ends are flanged using a thermo cautery to prevent slipping back in.
Locations(1)
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NCT06102109