Table 2. Clinical findings and ERG parameters in individual patients.
| No. | bilatelarity | age (years old) | gender | vitreoretinal pathology | indication for SO use | intracameral SO | encircling | number of preSOR surgeries | synechia | Period between SOR and ERG recordings (days) | LogMAR | Ratio of ERG parameter (affected eye/ fellow eye) | Group | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| before SOR | after SOR | ||||||||||||||||||||||
| amplitude | implicit time | amplitude | implicit time | ||||||||||||||||||||
| before SOR | after SOR | before SOR | after SOR | before SOR | after SOR | a wave | b wave | a wave | b wave | a wave | b wave | a wave | b wave | ||||||||||
| 1 | R | 57 | F | RRD | indferior, multiple breaks | - | + | 1 | - | - | 125 | 26 | 1.52 | 1.70 | 0.07 | 0.08 | 1.36 | 0.96 | 0.22 | 0.48 | 1.42 | 1.48 | Group 1 |
| 2 | L | 52 | M | PVR | PVR | + | + | 2 | - | - | 97 | 76 | 0.52 | 0.30 | 0.64 | 0.51 | 1.04 | 1.08 | 0.55 | 0.47 | 1.36 | 0.95 | Group 1 |
| 3 | L | 72 | F | RRD | indferior break | - | - | 2 | - | - | 112 | 111 | 0.05 | 0.22 | 0.87 | 0.69 | 0.99 | 0.99 | 1.15 | 1.07 | 0.95 | 1.18 | Group 1 |
| 4 | R | 58 | M | RRD | indferior, multiple breaks | - | - | 1 | - | - | 84 | 13 | 0.52 | 0.22 | 0.81 | 0.94 | 1.29 | 1.09 | 1.83 | 1.63 | 1.26 | 0.78 | Group 1 |
| 5 | R | 48 | F | PVR | PVR | + | - | 2 | + | - | 99 | 25 | 1.00 | 0.70 | 0.00 | 0.00 | n.a. | n.a. | 0.96 | 0.97 | 1.52 | 1.11 | Group 2 |
| 6 | R | 56 | F | RRD | difficulty in keeping prone position | - | + | 2 | + | - | 71 | 33 | 0.82 | 1.22 | 0.00 | 0.00 | n.a. | n.a. | 0.74 | 0.69 | 1.10 | 0.88 | Group 2 |
| 7 | R | 70 | M | PVR | PVR | - | - | 1 | + | - | 122 | 62 | 2.00 | 1.30 | 0.00 | 0.00 | n.a. | n.a. | 0.70 | 0.54 | 1.47 | 1.17 | Group 2 |
| 8 | R | 67 | M | PVR | PVR | - | + | 3 | - | - | 140 | 111 | 0.82 | 0.82 | 0.00 | 0.00 | n.a. | n.a. | 0.70 | 0.51 | 1.15 | 0.79 | Group 2 |
| 9 | R | 52 | F | PVR | PVR | + | - | 2 | + | - | 458 | 104 | 1.00 | 0.70 | 0.42 | 0.22 | 1.20 | 0.91 | 0.60 | 0.54 | 1.12 | 0.95 | Group 1 |
| 10 | L | 63 | M | RRD | post ocular trauma | - | - | 1 | - | - | 119 | 287 | 0.40 | 0.22 | 0.48 | 0.52 | 1.26 | 1.00 | 1.16 | 0.87 | 1.06 | 1.20 | Group 1 |
| 11 | L | 73 | M | RRD | post ocular trauma | + | - | 1 | - | - | 198 | 10 | 0.70 | 1.00 | 0.70 | 0.60 | 0.86 | 1.02 | 1.49 | 1.50 | 0.99 | 1.11 | Group 1 |
ERG: electroretinogram, SOR:silicone oil removal, Log MAR:logarythm of minimal angular resolution, R:right, L:left
RRD: rhegmatogeneous retinal detachment, PVR: proliferative vitreoretinopathy, F: female, M: male, n.a.: not applicable because the implicit time before SOR was unmeasurable.
Group 1: eyes which showed recordable ERG (+) both before and after SOR, Group 2: eyes which showed non-recordable ERG before SOR and recordable ERG after SOR.