Table 2.
Comparisons of the Clinical Features of Patients in the 10,000- and 20,000-Cuts per Minute Groups
| 27-Gauge Pars Plana Vitrectomy | P value | ||
|---|---|---|---|
| 10,000 cpm, N=20 | 20,000 cpm, N=20 | ||
| Baseline features | |||
| Mean logMAR visual acuity | 0.11 ± 0.14 | 0.16 ± 0.19 | 0.33 |
| Snellen visual acuity | 20/66-20/16 | 20/66-20/16 | N.A. |
| IOP (mmHg) | 14.7 ± 2.05 | 14.2 ± 2.33 | 0.44 |
| Simultaneous cataract surgery | 11 | 18 | |
| Duration of vitrectomy (s) | 184 ± 57 | 153 ± 40 | 0.047 |
| Formation of intraoperative retinal break, n | 0 | 0 | |
| Ports that required suture, n | 19/80 | 25/80 | 0.48 |
| One day after surgery | |||
| IOP (mmHg) | 13 ± 3.8 | 14 ± 4.5 | 0.47 |
| IOP <5 mmHg, n (%) | 0 | 0 | |
| IOP >30 mmHg, n (%) | 0 | 0 | |
| Retinal break, n (%) | 0 | 0 | |
| Vitreous hemorrhage, n (%) | 1 (5%) | 0 (0%) | |
| Postoperative retinal detachment, n (%) | 0 (0%) | 0 (0%) | |
| One week after surgery | |||
| Mean logMAR visual acuity | 0.16 ± 0.25 | 0.11 ± 0.24 | 0.47 |
| Snellen visual acuity | |||
| IOP (mmHg) | 15.4 ± 3.79 | 15.1 ± 2.91 | 0.75 |
| IOP <5 mmHg, n (%) | 0 | 0 | |
| IOP >30 mmHg, n (%) | 0 | 0 | |
| Retinal break, n (%) | 0 | 0 | |
Notes: Data are mean ± standard deviation unless otherwise indicated.
Abbreviations: LogMAR, logarithm of minimum angle of resolution; cpm, cut per minute; IOP, intraocular pressure.