Table 1.
Demographic Patient Data
| Parameters | Mean ± SD (Range) or No. (%) |
|---|---|
| Eyes/Subjects | 560/375 |
| By subjects | |
| Age, years | 70.6 ± 13.2 (11, 95) |
| Sex, subjects (%) | |
| Male | 181 (48) |
| Female | 194 (52) |
| By eyes | |
| Glaucoma type, eyes (%) | |
| POAG | 317 (57) |
| EXG | 112 (20) |
| PACG/mixed | 71 (13) |
| Steroid | 21 (3) |
| Developmental | 17 (3) |
| Others | 22 (4) |
| No. previous ocular surgeries | 0.3 (0–3) |
| Previous ocular surgeries, eyes (%) | |
| No | 428 (76) |
| Yes | 132 (24) |
| Cataract surgery | 79 (14) |
| Phacoemulsification | 79 (14) |
| Glaucoma surgery | 73 (13) |
| Trabeculectomy | 4 (<1) |
| Ex-PRESS shunt | 7 (1) |
| ab externo trabeculotomy | 27 (5) |
| Goniocynechialysis | 12 (2) |
| Gold shunt | 1 (<1) |
| Laser iridotomy | 14 (3) |
| Selective laser trabeculoplasty | 13 (2) |
| Laser trabeculoplasty | 1 (<1) |
| Laser gonioplasty | 2 (<1) |
| Retinal surgery | 13 (2) |
| Retinal photocoagulation | 7 (1) |
| Scleral buckling | 4 (<1) |
| Pars plana vitrectomy | 2 (<1) |
| Surgical procedure, eyes (%) | |
| µLOT alone | 159 (28) |
| Phakic eye | 80 (14) |
| Pseudophakic eye | 79 (14) |
| µLOT + cataract surgery | 401 (72) |
| Trabeculotomy site, eyes (%) | |
| Nasal and temporal | 512 (92) |
| Nasal only | 24 (4) |
| Temporal only | 24 (4) |
| Extent of trabeculotomies (clock hours) | |
| Nasal and temporal | 6.9 ± 0.9 (4, 10) |
| Nasal only | 3.8 ± 0.4 (3, 4) |
| Temporal only | 3.6 ± 0.7 (2, 5) |
| Follow-up, days | |
| Mean ± SD (range) | 405 ± 327 (2, 1326) |
Abbreviations: POAG, primary open-angle glaucoma; EXG, exfoliation glaucoma; PACG, primary angle-closure glaucoma; Mixed, mixed mechanism glaucoma; Steroid, steroid-induced glaucoma; Developmental, developmental glaucoma; µLOT, microhook ab interno trabeculotomy; SD, standard deviation.