| OSDI Score | |||
| Normal | Dry eye | ||
| n (%) | n (%) | Total | |
| Characteristics | 66 (20.3) | 259 (79.7) | n (%) |
| Age (years) (mean (SD)) | 66.1 (11.8) | ||
| Age (years) | |||
| <50 | 7 (10.6) | 19 (7.3) | 26 (8.0) |
| ≥50 | 59 (89.4) | 240 (92.7) | 299 (92.0) |
| Sex | |||
| Male | 41 (62.1) | 143 (55.2) | 184 (56.6) |
| Female | 25 (37.9) | 116 (44.8) | 141 (43.4) |
| Education | |||
| None | 0 (0.0) | 24 (9.3) | 24 (7.4) |
| Primary | 27 (40.9) | 132 (50.9) | 159 (48.9) |
| Secondary | 18 (27.3) | 49 (18.9) | 67 (20.6) |
| Tertiary | 21 (31.8) | 54 (20.9) | 75 (23.1) |
| Glaucoma treatment | |||
| Timolol | 40 (60.6) | 164 (63.3) | 204 (62.8) |
| Other medications | 26 (39.4) | 95 (36.7) | 121 (37.2) |
| Number of medication | |||
| Single | 40 (60.6) | 167 (64.5) | 207 (63.7) |
| Two or more medication | 26 (39.4) | 92 (35.5) | 118 (36.3) |
| Management | |||
| Medication | 62 (93.9) | 252 (97.3) | 314 (96.6) |
| Surgical | 4 (6.1) | 7 (2.7) | 11 (3.4) |
| Duration of treatment | |||
| ≤1 | 10 (15.1) | 35 (13.5) | 45 (13.9) |
| 2 to 5 | 46 (69.8) | 170 (65.6) | 216 (66.4) |
| >5 | 10 (15.1) | 54 (20.9) | 64 (19.7) |
| Alternative treatment | |||
| No | 40 (60.6) | 168 (64.9) | 208 (64.0) |
| Traditional | 3 (4.6) | 8 (3.1) | 11 (3.4) |
| Prayers | 23 (34.8) | 83 (32.1) | 106 (32.6) |
| Tear break up time | |||
| Normal | 5 (7.6) | 37 (14.3) | 42 (12.9) |
| Abnormal | 61 (92.4) | 222 (85.7) | 283 (87.1) |
| Ocular surface staining | |||
| Normal | 24 (36.4) | 92 (35.5) | 116 (35.7) |
| Abnormal | 42 (63.6) | 167 (64.5) | 209 (64.3) |
| Schirmer test | |||
| Normal | 38 (57.6) | 146 (56.4) | 184 (56.6) |
| Dry eye | 28 (42.4) | 113 (43.6) | 141 (43.4) |