Retinal Tectonics after Macular Pucker Surgery: Thickness Changes and En-Face Displacement Recovery.

Scarinci, Fabio; Querzoli, Giorgio; Cosimi, Pamela; Ripandelli, Guido; Romano, Mario R; Cacciamani, Andrea; Munk, Marion R; Rossi, Tommaso (2024). Retinal Tectonics after Macular Pucker Surgery: Thickness Changes and En-Face Displacement Recovery. Retina, 44(1), pp. 102-110. Wolters Kluwer 10.1097/IAE.0000000000003928

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PURPOSE

To study visual function, retinal layer thickness changes and tangential displacement after Pars Plana Vitrectomy (PPV) for EpiRetinal Membrane (ERM).

METHODS

Retrospective series of patients undergoing PPV for ERM, with 6-month follow-up including best-corrected visual acuity (BCVA), Optical Coherence Tomography (OCT), M-charts, ERM grading, and InfraRed fundus photo at time 0 (T0, pre-op) at month 1 (T1), 3 (T3), 6 (T6) post-op (±1 week). Retinal layer thickness and tangential (en-face) retinal displacement between successive times for the entire retinal surface and the central horizontal and vertical meridian were also measured. En-face displacement was calculated as optical flow of consecutive images.

RESULTS

Average BCVA improved from 0.28±0.08 logMAR at T0 to 0.16±0.25 at T6 (p=0.05), BCVA improvement correlated with BVCA at T0 (p<0.001). Vertical metamorphopsia decreased from 1.33°±0.70° at T0 to 0.82°±0.69° at T6 (p<0.05). Foveal thickness reduced from 453±53µm at T0 to 359±31µm at T6 (p<0.05) and reduction correlated with BCVA improvement (p<0.05). Foveal layers decreased (p<0.05) in all cases. Mean en-face deformation was 155.82±50.17µm and mostly occurred in the first month: T0-T1 displacement was 83.59±30.28µm, T1-T3 was 36.28±14.45µm, while T3-T6 was 39.11±22.79µm (p<0.001) on average. Peri-foveal and parafoveal deformation correlated with OCT foveal thickness reduction at all time intervals (1, 3, 6 months: p<0.01).

CONCLUSION

ERM peeling affects all retinal layer thickness and results in new force balance across the entire retina and tangential displacement. Both en-face and in-depth changes correlate with visual function.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Ophthalmology

UniBE Contributor:

Munk, Marion

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1539-2864

Publisher:

Wolters Kluwer

Language:

English

Submitter:

Pubmed Import

Date Deposited:

14 Sep 2023 11:16

Last Modified:

21 Dec 2023 00:13

Publisher DOI:

10.1097/IAE.0000000000003928

PubMed ID:

37695945

BORIS DOI:

10.48350/186233

URI:

https://boris.unibe.ch/id/eprint/186233

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