scholarly journals Effect of Foveal Pit Restoration in Foveal Avascular Zone After Surgery for idiopathic Epiretinal Membrane

2021 ◽  
Author(s):  
Byung-Jin Bae ◽  
Na-Kyung Ryoo
Keyword(s):  
Epiretinal Membrane ◽  
Foveal Avascular Zone ◽  
Idiopathic Epiretinal Membrane ◽  
Avascular Zone

Study of foveal avascular zone by OCTA before and after idiopathic epiretinal membrane removal

2017 ◽  
Vol 32 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Takayuki Baba ◽  
Masato Kakisu ◽  
Tomohiro Nizawa ◽  
Toshiyuki Oshitari ◽  
Shuichi Yamamoto
Keyword(s):  
Epiretinal Membrane ◽  
Foveal Avascular Zone ◽  
Idiopathic Epiretinal Membrane ◽  
Avascular Zone ◽  
Before And After

Misalignment between center of foveal avascular zone and center of foveal photoreceptors in eyes with idiopathic epiretinal membrane

Retina ◽  
2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Taiji Hasegawa ◽  
Ai Kawaguchi ◽  
Hisaya Arakawa ◽  
Ichiro Maruko ◽  
Tomohiro Iida
Keyword(s):  
Epiretinal Membrane ◽  
Foveal Avascular Zone ◽  
Idiopathic Epiretinal Membrane ◽  
Avascular Zone

scholarly journals Influence of postoperative ectopic inner foveal layer on visual function after removal of idiopathic epiretinal membrane

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0259388
Author(s):  
Bo Hee Kim ◽  
Dong Ik Kim ◽  
Ki Woong Bae ◽  
Un Chul Park
Keyword(s):  
Visual Acuity ◽  
Epiretinal Membrane ◽  
Surrogate Marker ◽  
Foveal Avascular Zone ◽  
Idiopathic Epiretinal Membrane ◽  
Postoperative Changes ◽  
Avascular Zone ◽  
Pars Plana ◽  
The Mean ◽  
Anatomical Parameters

Purpose To investigate the functional and anatomical parameters and their postoperative changes according to the ectopic inner foveal layer (EIFL) staging scheme for idiopathic epiretinal membrane (ERM). Methods In this prospective study, patients with idiopathic ERM underwent pars plana vitrectomy and ERM removal, and were followed-up for 6 months. The associations of EIFL with pre- and postoperative functional and anatomical parameters were analyzed. Results A total of 84 eyes (84 patients) were included: 39 (46.4%), 33 (39.3%), and 12 (14.3%) as EIFL stages 2, 3, and 4, respectively. At 6 months after surgery, the mean best-corrected visual acuity (BCVA) significantly improved in all EIFL stages (P ≤ 0.003); however, metamorphopsia improved only in eyes with EIFL stage 2 (P = 0.039) and 3 (P = 0.011). The aniseikonia and foveal avascular zone (FAZ) area showed no significant postoperative changes in any of the EIFL stages. Both preoperatively and during 6 months after surgery, the EIFL stage showed a significant correlation with BCVA (P ≤ 0.033), metamorphopsia (P ≤ 0.008), central macular thickness (P < 0.001), and FAZ parameters (P ≤ 0.016) at each time point, but not with aniseikonia. Significant correlations of EIFL thickness with BCVA (P = 0.028) and metamorphopsia (P = 0.006) before surgery were not persistent after surgery. Conclusion Both pre- and postoperatively, the staging of EIFL, rather than its thickness, is a simple and adequate surrogate marker for visual acuity and metamorphopsia in eyes with idiopathic ERM.

scholarly journals The Association between Macular Structure and Idiopathic Epiretinal Membrane

2020 ◽  
Author(s):  
I-Hsin Ma ◽  
Chung-May Yang ◽  
Yi-Ting Hsieh
Keyword(s):  
Regression Analysis ◽  
Epiretinal Membrane ◽  
Normal Population ◽  
Mean Value ◽  
Foveal Avascular Zone ◽  
Control Group ◽  
Structure Parameters ◽  
Idiopathic Epiretinal Membrane ◽  
And Gender ◽  
Fellow Eyes

AbstractPurposeThis study measured the anatomical characteristics of the macula in fellow eyes of patients with unilateral idiopathic epiretinal membrane (ERM) and compared them with normal control.DesignA retrospective observational study.ParticipantsA total of of 94 fellow eyes with unilateral idiopathic ERM were gathered as the study group, and their age and gender-matched subjects with no vitreomacular diseases were recruited as the control group.MethodsMacular structure parameters including foveal base width (FBW), central foveolar thickness (CFT), central subfield thickness (CST), area of foveal avascular zone (FAZ), and retinal artery trajectory (RAT) were measured using optical coherence tomography (OCT) and OCT angiography and were compared between two groups.Main outcome measuresMacular structure parameters were compared between the two groups. A wide-based foveal pit was defined as a FBW larger than the mean value plus one standard deviation of the normal population. Regression analysis was performed to evaluate factors that affect FBW.ResultsAmong the 94 fellow eyes of unilateral ERM; 71 eyes (75.5%) had a wide-based foveal pit. Both their FBW (418.9 ± 68.7 µm) and area of FAZ (0.38 ± 0.12 mm2) were significantly larger than those in the control group (323.2 ± 74.3 µm and 0.31± 0.17 mm2; p < 0.001 and p = 0.02, respectively), and they also had a thinner CFT and CST, and a wider RAT than the control group (p < 0.05 for all). In the control group, females had a wider FBW, a thinner CFT and CST, and a wider RAT than males (p < 0.05 for all). Regression analysis showed that female, a thinner CST and a larger FAZ were all associated with a larger FBW.ConclusionFellow eyes of the unilateral ERM had a larger FBW and FAZ, a thinner CFT and CST, and a wider RAT than the normal population. This implicates that centrifugal macular traction may result in the formation of idiopathic ERM. Females had a wider FBW, a thinner CST, and a wider RAT than males, which may explain the higher prevalence of idiopathic ERM in females.

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