1 / 10

Aylin Karalezli, Sabahattin Sul Muğla Sıtkı Koçman University, Ophthalmology Department Turkey

Foveal microvasculature differences in patients with macular hole after vitrectomy with internal limitant membrane removal or single - layered inverted internal limitant membrane flap technique. Aylin Karalezli, Sabahattin Sul Muğla Sıtkı Koçman University, Ophthalmology Department Turkey

thad
Télécharger la présentation

Aylin Karalezli, Sabahattin Sul Muğla Sıtkı Koçman University, Ophthalmology Department Turkey

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fovealmicrovasculaturedifferences in patientswithmacular hole aftervitrectomywithinternallimitantmembraneremovalorsingle-layeredinvertedinternallimitantmembraneflaptechnique Aylin Karalezli, Sabahattin Sul Muğla Sıtkı Koçman University, Ophthalmology Department Turkey 19th EVRS Meeting June 2019, Lizbon-Portugal

  2. Purpose • To determine the foveal microvasculature differences in patients with idiopathic macular hole (MH) after vitrectomy with internal limitant membrane (ILM) removal  or single-layered ILM flap technique

  3. Material- Methods • Design: A retrospective, observational case series • Group 1: Fifteen eyes of 15 patients with a unilateral MH that had undergone vitrectomy with ILM removal • Group 2: 7 eyes of 7 MH patients that had undergone vitrectomy with single- layered ILM flap • Control group: healthy fellow eyes • OCTA scan before, 4 and 8 weeks after surgery (3 mm x 3 mm and 6 mm x 6 mm en face images) • The area of the foveal avascular zone (FAZ) and the vascular density (VD) ratio in the superficial and deep capillary plexus (SCP and DCP) were evaluated

  4. Results • no statistically significant differences between the groups for baseline characteristics • mean postoperative FAZ areas were significantly reduced after surgery in two groups (p<0.001) • postoperative FAZ areas were significantly smaller than that of the fellow eye in two groups (p<0.001) • no statistically significant differences in mean postoperative FAZ areas between two groups (p=0.764)

  5. Results • mean VD ratios in SCP were similar (p=0.341 in group1 and p=0.326 in group 2) • mean VD ratios in DCP were statistically lower than that for the fellow eyes after surgery (p=0.021 in group 1 and p=0.032 in group 2) • change in VD ratio in DCP after surgery was higher in group 1 than in group 2, but the difference was not statistically significant (p=0.675)

  6. Pre-postop ILM peeling (Group 1) Pre-postop ILM flab (Group 2)

  7. Group 1 Preop FAZ Prostop FAZ Group 2

  8. Group 1 Preop SCPVD Preop DCPVD Postop SCPVD Postop DCPVD

  9. Group 2 Preop SCPVD Preop DCPVD Postop SCPVD Postop DCPVD

  10. Conclusion • FAZ area and the mean VD ratio of the DCP decrease after the MH surgery • Although the healing process after MH surgery may cause both anatomic and hemodynamic changes of the inner retina,  the single-layered ILM flap technique does not seem to have added any additional microvascular changes on macula when compared with ILM removal

More Related