AI Article Synopsis

  • * Among 49 patients examined, a significant percentage (80%) experienced post-surgical epiretinal proliferation, with a notably lower success rate (51%) in eyes with a micropyon compared to a control group (91%).
  • * The meniscus micropyon can be distinguished from similar post-surgical conditions due to its delayed onset, unique autofluorescent properties, and histological composition primarily of white blood cells, suggesting it may serve as a biomarker for post-operative complications.

Article Abstract

Purpose: To describe an ophthalmoscopic sign, termed a meniscus micropyon, and its possible association with proliferative vitreoretinopathy/epiretinal membrane (ERM) formation after retinal surgery with gas tamponade.

Methods: Patients with intravitreal gas were examined postoperatively by one of six vitreoretinal surgeons from four institutions. A micropyon was defined as a white-yellow, solid-appearing consolidation along the meniscus (i.e., the fluid-gas interface).

Results: A micropyon was visualized and photographed in 49 patients who received intravitreal gas. Preoperatively, retinal breaks were present in all 49 eyes and rhegmatogenous retinal detachment in 45 (92%). Postoperatively, 39 eyes (80%) developed epiretinal proliferation: 16 eyes (33%) developed recurrent rhegmatogenous retinal detachment from proliferative vitreoretinopathy, 6 eyes (12%) re-detached without frank proliferative vitreoretinopathy, 9 eyes (18%) developed postoperative ERM/worsening, and 8 eyes (16%) had postoperative ERM but no preoperative optical coherence tomography to determine if the postoperative ERM was new or worsening. The single-operation anatomical success in eyes with a micropyon was 51%, which was lower than that of a contemporaneous rhegmatogenous retinal detachment control group (91%) in which no micropyon was detected. In two patients, micropyons were biopsied during pars plana vitrectomy and examined histopathologically; they consist predominantly of white blood cells.

Conclusion: The meniscus micropyon is an ophthalmoscopic sign that can occur after retinal surgery with gas tamponade. Features that distinguish a micropyon from postvitrectomy fibrin/fibrinoid syndrome include delayed appearance, hyperautofluorescence, absence of translucent strands or sheets in the anterior chamber or vitreous cavity, and the histopathologic identification of white blood cells. A clinically detectable micropyon may be a biomarker of proliferative vitreoretinopathy/ERM formation.

Download full-text PDF

Source
http://dx.doi.org/10.1097/IAE.0000000000004176DOI Listing

Publication Analysis

Top Keywords

meniscus micropyon
12
ophthalmoscopic sign
12
retinal surgery
12
surgery gas
12
rhegmatogenous retinal
12
retinal detachment
12
micropyon ophthalmoscopic
8
epiretinal proliferation
8
gas tamponade
8
micropyon
8

Similar Publications

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!