Table 3.
Univariable analysis of risk factors for 360S-LOT ab interno
| Variable | No. of eyes | Criterion A for surgical success
|
Criterion B for surgical success
|
||
|---|---|---|---|---|---|
| 2-Year probability of success | P-value | 2-Year probability of success | P-value | ||
| Age (years) | 0.087 | 0.232 | |||
| >75 | 31 | 60.7 | 27.4 | ||
| ≤75 | 33 | 38.3 | 6.1 | ||
| Preoperative IOP (mmHg) | 0.644 | 0.702 | |||
| >18 | 32 | 52.5 | 20.3 | ||
| ≤18 | 32 | 46.3 | 12.5 | ||
| Number of anti-glaucoma medications | 0.027 | 0.165 | |||
| ≥2 | 33 | 36.1 | 15.2 | ||
| <2 | 31 | 63.5 | 17.5 | ||
| Sex | 0.110 | 0.352 | |||
| Male | 27 | 62.5 | 19.6 | ||
| Female | 37 | 40.1 | 13.5 | ||
| Type of glaucoma | 0.300 | 0.520 | |||
| POAG | 28 | 39 | 13.4 | ||
| NTG | 20 | 58.2 | 11.4 | ||
| XFG | 16 | 55.6 | 25 | ||
| Lens status | 0.465 | 0.618 | |||
| Phakia | 58 | 50.8 | 14.1 | ||
| Pseudophakia | 6 | 33.3 | 33.3 | ||
| Past history | 0.053 | 0.247 | |||
| None | 55 | 53.5 | 14.8 | ||
| Intraocular surgeries | 7 | 28.6 | 28.6 | ||
| Selective laser trabeculoplasty | 2 | 0 | 0 | ||
| With/without PEA + IOL | 0.043 | 0.070 | |||
| 360S-LOT ab interno alone | 19 | 31.6 | 10.5 | ||
| 360S-LOT ab interno with PEA + IOL | 45 | 56.4 | 18.2 | ||
Note: P-values were based on log-rank test.
Abbreviations: 360S-LOT, 360-degree suture trabeculotomy; IOP, intraocular pressure; POAG, primary open-angle glaucoma; NTG, normal tension glaucoma; XFG, exfoliation glaucoma; PEA + IOL, phacoemulsification with intraocular lens implant.