Table 1.
Demographic characteristics of the study population.
| Variables | NTG | POAG | SOAG | XFG | P-value‡ |
|---|---|---|---|---|---|
| Patients (No.) | 14 | 29 | 15 | 12 | |
| Sex (male: female) | 7:7 | 19:10 | 8:7 | 8:4 | NS* |
| Age, mean (SD), years | 64.8 (10.3) | 66.0 (12.0) | 62.3 (13.4) | 74.3 (8.7) | NS** (P = 0.0566) |
| [range] | 49–80 | 42–84 | 37–82 | 61–86 | |
| Preoperative IOP, mean (SD), mmHg | 15.9 (2.9) | 20.7 (4.9) | 31.2 (11.7) | 23.8 (8.7) | †<0.0001*** |
| [range] | 9–21 | 14–33 | 12–49 | 13–43 | |
| MD, mean (SD), dB | −18.2 ± 6.6 | −19.37 ± 6.3 | −16.6 ± 8.4 | −15.8 ± 7.7 | NS** |
| [interquartile] | −29.5 to −4.3 | −30.5 to −9.9 | −28.5 to −1.85 | −26.9 to −2.7 | |
| Glaucoma eye drops, mean (SD), No. | 3.1 (0.9) | 3.8 (1.0) | 3.7 (0.8) | 4.0 (0.7) | NS** |
| [range] | 2–5 | 1–5 | 2–5 | 3–5 | |
| History of phacoemulsification, No. (%) | 3 (21) | 7 (24) | 7 (47) | 6 (50) | <0.0001* |
NTG, normal-tension glaucoma; POAG, primary open-angle glaucoma; SOAG, secondary glaucoma; XFG, exfoliative glaucoma; IOP, intraocular pressure.
*Fisher’s exact test; **analysis of variance; ***Kruskal-Wallis; †statistically significant difference from the SOAG group (Steel-Dwass test); ‡comparison of the four glaucoma subtypes.