Figure 3.
Mean change in visual acuity over time for all eyes (A) and stratified by baseline visual acuity of 68 to 24 letters (approximate Snellen equivalent 20/50 to 20/320) (B) and 78 to 69 letters (approximal Snellen equivalent 20/32 to 20/40) (C) among follow-up study participants from a 2-year clinical trial on anti-vascular endothelial growth factor treatment for eyes with diabetic macular edema (Protocol T). Change in visual acuity was truncated to the mean ± 3 standard deviations of the change from baseline to 5 years (7.12 ± 3 × 16.04). Eyes missing visual acuity at the 5-year visit were excluded.