Table 2.
Diagnoses, associated ocular pathologies, treatment factors, and imaging characteristics with regard to the primary initial vitrectomy.
| Primary diagnosis, no. (%) | 38 (100) |
| Rhegmatogenous RD (5 macula-off) | 9 (24) |
| Secondary epiretinal membrane | 6 (16) |
| Vitreous haemorrhage (4 PDR, 1 PCV) | 5 (13) |
| Oil-filled status after RD surgery (4 macula-off) | 5 (13) |
| Idiopathic epiretinal membrane | 4 (11) |
| Lamellar hole | 3 (8) |
| Submacular haemorrhage (2 PCV, 1 RAM) | 3 (8) |
| Vitreomacular traction syndrome | 2 (5) |
| Optic disc pit-associated maculopathy | 1 (3) |
| Co-existing pathology and clinical features prior to initial vitrectomy, no. (%) | |
| Epiretinal membrane detected on OCT | 22 (58) |
| Vitreous attachment at fovea on OCT | 22 (58) |
| Vitreous haemorrhage | 11 (29) |
| PDR | 4 (11) |
| Breakthrough from SMH | 3 (8) |
| PCV | 2 (5) |
| Branch retinal vein occlusion | 1 (3) |
| RAM | 1 (3) |
| Retinoschisis | 5 (13) |
| Lamellar macular hole | 4 (11) |
| Past surgical history of macula-off RD | 3 (8) |
| Prior scleral encircling or buckling for RD | 3 (8) |
| Proliferative vitreoretinopathy | 3 (8) |
| Posterior uveitis | 2 (5) |
| Prior oil removal history after RD | 1 (3) |
| Serous neurosensory RD | 1 (3) |
| RAM | 1 (3) |
| Adjuvant techniques for primary vitrectomy, no. (%) | |
| ILM peeling | 20 (44) |
| Pneumatic tamponade (SF6 or C3F8 gas) | 16 (42) |
| Silicone oil injection | 12 (32) |
| Scleral buckle/encircling | 5 (13) |
| Intravitreal anti-VEGF injection performed | 12 (32) |
| No. of injections, mean ± SD (range) | 2.6 ± 2.0 (1–7) |
| Intravitreal Ozurdex® injection performed | 3 (8) |
| No. of injections, mean ± SD (range) | 1.7 ± 1.2 (1–3) |
ILM = internal limiting membrane; OCT = optical coherence tomography; PDR = proliferative diabetic retinopathy; RAM = retinal arterial macroaneurysm; RD = retinal detachment; SD = standard deviation; SMH = submacular haemorrhage; VEGF = vascular endothelial growth factor.