Baseline demographics by responding to clear lens extraction (CLE) versus laser peripheral iridotomy (LPI); optimal responder defined by intraocular pressure<21 at 36 months without any medication and no additional surgery
| CLE (n=182) | LPI (n=187) | |||
| Optimal responder | Suboptimal responder | Optimal responder | Suboptimal responder | |
| Number (%) | 120 (65.9%) | 62 (34.1%) | 33 (17.7%) | 154 (82.4%) |
| Age (mean±SD) | 67.6±8.1 | 68.6±7.9 | 65.6±9.2 | 67.6±8.3 |
| Female (n (%)) | 69 (57.5%) | 38 (61.3%) | 23 (69.7%) | 83 (53.9%) |
| Chinese origin (n (%)) | 38 (31.7%) | 12 (19.4%) | 16 (48.5%)* | 40 (26.0%)* |
| Diagnosis (n (%)) | ||||
| PAC | 52 (43.3%) | 21 (33.9%) | 22 (66.7%)* | 51 (33.1%)* |
| PACG | 68 (56.7%) | 41 (66.1%) | 11 (33.3%)* | 103 (66.9%)* |
| Spherical equivalence, D (mean±SD) | +1.79±2.33 | +1.43±2.36 | +0.40±2.58* | +1.48±2.21* |
| Glaucoma medication used at baseline(n (%)) | 65 (56.0%)* | 42 (72.4%)* | 14 (45.2%)* | 104 (69.3%)* |
| Gonioscopy measurements | ||||
| Peripheral anterior synechiae, degree (mean±SD) | 45.7±79.6 | 27.6±68.3 | 38.8±65.1 | 44.5±80.6 |
| Irido-trabecular contact, degree (mean±SD) | 290.1±81.9 | 289.1±73.4 | 323.4±55.3 | 300.3±74.8 |
| IOLMaster (mean±SD) | ||||
| Axial length, mm | 22.5±0.9 | 22.7±0.9 | 22.7±1.3 | 22.6±0.9 |
| Anterior chamber depth, mm | 2.51±0.34* | 2.61±0.29* | 2.52±0.46 | 2.55±0.34 |
| Visual fields MD, dB (mean±SD) | −4.34±5.10 | −5.20±5.73 | −3.42±3.90 | −4.87±5.35 |
| Visual acuity, letter | 78.0±10.2 | 74.7±16.8 | 73.9±15.4 | 75.9±13.8 |
| Intraocular pressure, mm Hg (mean±SD) | 29.3±8.5 | 30.3±7.0 | 30.8±7.1 | 30.4±8.0 |
| Central corneal thickness, μm (mean±SD) | 550.2±38.1 | 552.3±38.8 | 560.3±38.8 | 550.0±40.2 |
* = statistically significantly different, p < 0.05.
MD, mean deviation; PAC, primary angle closure; PACG, primary angle closure glaucoma.