Table 3.
Best corrected VA and intraocular pressure measurements for patients seen by GES at the Birmingham Free Clinic site, 2012–2017
| Best corrected VA (logMAR, Snellen equivalent) | Intraocular pressure (mmHg) | |||
|---|---|---|---|---|
|
| ||||
| Better-seeing eye | Worse-seeing eye | Right eye | Left eye | |
|
| ||||
| Mean ± SD | 0.07 (20/24)±0.16 | 0.16 (20/29)±0.33 | 17.1±3.5 | 17.0±3.4 |
| Range | 2 (CF at 3 ft) to −0.3 (20/10) | 3 (HM only) to −0.12 (20/15) | 8–34 | 10–35 |
| n | 354 | 354 | 333 | 333 |
Notes: For VA, three patients had missing data, two different patients had no light perception and thus unable to be converted to logMAR and included in the analysis, and one was measured as central, steady, and maintained. For intraocular pressure, measurement was either refused by or data missing for 27 cases. Intraocular pressure was measured by Tono-Pen.
Abbreviations: CF, counting fingers; GES, Guerrilla Eye Service; HM, hand motions; logMAR, logarithm of the minimum angle of resolution; VA, visual acuity.