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Table 4 Comparison of vessel density and retinal thickness between both eyes in patients experienced with or without intraocular pressure elevation after silicone oil tamponade

From: Changes of macular vessel density and thickness in gas and silicone oil tamponades after vitrectomy for macula-on rhegmatogenous retinal detachment

SO tamponade Patients with IOP elevation Patients without IOP elevation
Affected eye Healthy eye P (Paired-t) Affected eye Healthy eye P (Paired-t)
logMAR BCVA at follow up,
Snellen equivalent
0.48 ± 0.26 0.01 ± 0.06 0.001 0.50 ± 0.33 0.04 ± 0.05 0.005
FAZ, mm2 0.221 ± 0.090 0.347 ± 0.100 0.052 0.319 ± 0.111 0.331 ± 0.077 0.757
Parafoveal VD of SVC (%) 38.69 ± 3.19 46.26 ± 2.32 < 0.001 39.91 ± 4.01 44.55 ± 5.48 0.079
Parafoveal VD of DVC (%) 50.10 ± 4.80 51.76 ± 4.95 0.482 52.34 ± 5.43 51.36 ± 3.31 0.716
Full retinal thickness, μm 290.33 ± 26.95 316.22 ± 13.08 0.022 305.63 ± 29.53 305.13 ± 40.24 0.976
Inner retinal thickness, μm 106.89 ± 13.66 128.89 ± 13.31 0.013 112.50 ± 19.02 127.88 ± 7.70 0.025
Outer retinal thickness, μm 183.33 ± 15.94 191.33 ± 8.82 0.286 192.88 ± 13.12 189.63 ± 4.34 0.555
  1. SO Silicone oil, IOP Intraocular pressure, logMAR Logarithm of the minimum angle of resolution, BCVA Best corrected visual acuity, VD Vessel density, SVC Superior vascular complex, DVC Deep vascular complex