Effect of the Duration of Intraretinal or Subretinal Fluid on the Response to Treatment in Undertreated Age-Related Macular Degeneration

Table 6

Visual acuity change from baseline 20/100 during the 36 months interval, the total accumulated IRF and SRF periods, and longest continuous IRF period.

VA change (n = 51) (logMAR BCVA change)	Parameter	Duration (months)	Rs	P value
0.0753 ± 0.384 (range, 1–1.18)	Total added IRF	17.73 ± 12.90 (0–36)	0.1091	0.440
	Total added SRF	15.96 ± 10.49 (0–36)	0.1384	0.328
	Longest continuous IRF	24.61 ± 29.29 (0–121.5)	0.2979	0.035

Spearman’s correlation coefficient by rank test. BCVA, best-corrected visual acuity; IRF, intraretinal fluid; SRF, subretinal fluid. Eyes with shorter than 36 months of observation periods and eyes that had gone undergone cataract surgery during the 36-month period were not included in the analysis.