Table 2.

Passive permeability, active transport, and visual acuity in eyes with succesfull photocoagulation—that is, without CSMO at follow up (n = 23, responding eyes) and eyes where CSMO was still present at follow up (n = 23, non-responding eyes). For comparison, data from eyes without CSMO both at baseline and follow up (n=11) are included

	Passive permeability nm/s baseline/follow up	Active transport nm/s baseline/follow up	Visual acuity logMAR baseline/follow up
CSMO at baseline no CSMO at follow up
Mean	8.23/7.44*	66.82/63.07	0.08/0.05*
95% confidence interval	5.5 to 12/5.1 to 11	42 to 107/43 to 93	0.02 to 0.14/0.01 to 0.09
CSMO at baseline still CSMO at follow up
Mean	12.26/13.49	67.53/95.15	0.18/0.33
95% confidence interval	8.4 to 18/9.5 to 19	54 to 112/72 to 125	0.07 to 0.30/0.21 to 0.46
No CSMO at baseline and follow up
Mean	3.67†/3.95‡	86.78/85.66	0.04/0.04‡
95% confidence interval	2.6 to 5.1/2.7 to 5.9	63 to 119/60 to 121	−0.1 to 1.7/−0.08 to 1.7

*Significant difference (t test) between responding and non-responding eyes at follow up. †Significant differences (t test) between eyes without CSMO and both groups of CSMO eyes (that is, both responding and non-responding eyes). ‡The significant difference between eyes without CSMO and non-responding eyes with persistent CSMO at follow up.