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Year : 2021  |  Volume : 11  |  Issue : 3  |  Page : 259-265

Visual functional changes after ocriplasmin injection for vitreomacular traction: A microperimetric analysis

1 Department of Medical Science, Neuroscience and Sense Organs, Eye Clinic, University of Bari, Bari, Italy
2 Eye Clinic, Hospital “S. G. MOSCATI“, ASL TA, Taranto, Italy
3 Eye Clinic, University of Catania, Catania, Italy

Correspondence Address:
Dr. Claudio Furino
Department of Medical Science, Neuroscience and Sense Organs, Eye Clinic, University of Bari, Piazza G. Cesare, 11, 70124 Bari
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/tjo.tjo_57_20

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PURPOSE: The purpose is to evaluate functional changes after ocriplasmin injection to treat vitreomacular traction (VMT) by microperimetry. MATERIALS AND METHODS: Prospective interventional study on patients underwent an intravitreal ocriplasmin injection. Optical coherence tomography, best-corrected visual acuity (BCVA) test, and microperimetry were performed at baseline, 1 week, 1 and 3 months. Microperimeter recorded retinal sensitivity (RS) and central retinal sensitivity (CRS) at central 12° and 4°, respectively, and fixation as bivariate contour ellipse area (BCEA) at 68%, 95%, and 99% of fixation points. Functional parameters were analyzed in patients who had (Group A) or not (Group B) VMT release. RESULTS: Twenty-one patients including 18 with VMT and 3 with VMT plus macular hole (MH) were treated. Eleven patients achieved VMT resolution including all cases with MH that achieved hole closure. An impairment of BCVA, RS and CRS (P < 0.01; P < 0.001; P = 0.001, respectively) was reported at 1 week followed by a significant improvement (BCVA, P = 0.001; RS, CRS, P = 0.02) at 3 months. The early impairment of visual acuity and sensitivity significantly occurred in Group B (P ≤ 0.01) while their recovery significantly occurred in Group A (P < 0.01). BCEA significantly increased in dimension (68%, P = 0.01; 95%, P = 0.03) at 1 week, subsequently returning to near baseline values over follow-up. Only in Group A, fixation stability significantly improved at 3 months. CONCLUSION: Microperimetry confirms an early and reversible functional impairment after ocriplasmin injection regardless VMT resolution. If a greater decrease in function could occur in the eyes without VMT resolution, a better functional recovery could occur in the event of VMT resolution.

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