Dose-Response-Relationship between Number of Laser Burns and IOP Reduction in Cyclophotocoagulation: An Animal Study

Table 1

IOP differences between treated and control eye (ΔIOP in mmHg), before and after treatment, and calculated IOP reduction per laser burn. A negative difference means that the IOP of the treated eye is lower than that of the control eye.

Laser burns	1	5	10	20	30
Before treatment	0.1 ± 0.2	0 ± 0.3	−0.2 ± 0.3	−0.3 ± 0.2	−0.3 ± 0.2
After treatment	−1.0 ± 0.4	−2.6 ± 0.6	−3.4 ± 0.8	−4.7 ± 1.0	−6.1 ± 1.4
𝑃 value	0.02	<0.01	0.01	0.01	0.01
IOP reduction per laser burn	0.96 ± 0.37	0.52 ± 0.13	0.34 ± 0.08	0.24 ± 0.05	0.20 ± 0.05