Table 1. Demographic and Clinic Characteristics of Participants Included in the Study.
| Characteristic | Mean (SD) | P Valuea | |||
|---|---|---|---|---|---|
| All Participants (n = 100) |
Self-tonometry Performance | ||||
| Partially Successful (n = 79) |
Completely Successful (n = 73) |
Unsuccessful (n = 21) |
|||
| Age, y | 67.5 (10.9) | 65.5 (10.2) | 65.5 (10.4) | 75.1 (9.9) | <.001 |
| Female | 53 (53) | 38 (48) | 36 (49) | 15 (71) | .06 |
| Right-handedness, No. (%) | 91 (91) | 70 (89) | 64 (88) | 21 (100) | .11 |
| SAP MD, No. (%), dB | |||||
| Better eye | −4.75 (6.04) | −4.65 (6.15) | −4.72 (6.25) | −5.15 (5.78) | .74 |
| Worse eye | −10.52 (8.28) | −10.15 (8.33) | −10.15 (8.04) | −11.88 (8.26) | .40 |
| Visual acuity, logMar | |||||
| Better eye | −0.04 (0.13) | −0.06 (0.12) | −0.05 (0.12) | 0.06 (0.13) | <.001 |
| Worse eye | 0.16 (0.29) | 0.12 (0.28) | 0.12 (0.28) | 0.32 (0.32) | .006 |
| CCT, um | 534 (37) | 536 (37) | 536 (37) | 530 (40) | .40 |
| IOP GAT, mm Hg | 14.3 (3.9) | 14.3 (4.0) | 14.2 (4.0) | 14.5 (3.8) | .75 |
| IOP Icare HOME reading, mm Hg | |||||
| Self-tonometry | 11.8 (4.9) | 11.7 (4.9) | 11.7 (4.9) | 13.7 (5.9) | .30 |
| Investigator | 11.7 (4.7) | 11.8 (4.6) | 11.6 (4.6) | 11.3 (4.8) | .58 |
Abbreviations: CCT, central corneal thickness; GAT, Goldmann applanation tonometry; IOP, intraocular pressure; MD, mean deviation; SAP, standard automatic perimetry.
a
t Test or Fisher exact test (2-tailed) of partially or completely successful groups vs unsuccessful group.