Changes in the postoperative foveal avascular zone in patients with rhegmatogenous retinal detachment associated with choroidal detachment

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“…To the contrary, there is no evidence for significant differences in the SCP VD between eyes treated by PPV with SO tamponade and normal eyes following SO removal, possibly suggesting an improvement of vascular insufficiency in those eyes [27]. Whether the initial capillary plexus alterations in SOfilled eyes may be attributed to ischemic tissue damage on account of macular detachment per se, surgical procedure or the effect of SO should be further clarified [24][25][26][27][28].…”

“…Retinal microvasculature of the two capillary plexuses (SCP and DCP) and choriocapillary network are evaluated in detail, while ICP is not always included in most studies due to projection artifact [9][10][11]. Notably, the currently available evidence concerning potential macular alterations as seen on OCT-A after RRD repair has stirred controversy as the results of the studies have not been unequivocally confirmed [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31].…”

“…Obviously, gas is a widely utilized tamponading agent and its use accounts for a large fraction of cases [32][33][34][35][36][37][38][39]. Indeed, most studies comprehensively examine OCT-A characteristics of RRD eyes after PPV with gas tamponade [13][14][15][16][17][18][19][20][21][22][23][29][30][31], while there is limited evidence of those treated by PPV with SO or by scleral buckle [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. The primary anatomical success rates for RRD repair by PPV have been found to range from 64% to 96%.…”

“…Changes in the foveal capillary plexus indicate the presence of ischemic damage to retinal vessels causing distortion of FAZ area. Of note, authors do not serve unequivocal perspectives in literature [12][13][14][15]17,19,20,[22][23][24]28]. Enlargement of SCP or DCP FAZ area has been attributed to tissue hypoxia leading to foveal derangement and capillary dropout [14].…”

“…Potential selection bias could be confounding factor of their results. Owing to the inter-individual variability of OCT-A parameters, it would be of additional value for all studies to interpret the OCT-A parameters of the RRD eye in reference to the fellow eye to avoid physiological differences among healthy subjects that may produce inconsistent results [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31].…”