<qa>  What is the primary outcome measure?Patient randomization was performed by an independent Research Coordinator in a separate physical space and kept sealed from the principal study investigators, who assessed and recorded outcome measures, until the completion of study data collection. IOP was measured in a masked fashion, using a second observer to record values. Two measurements within 1 mmHg were averaged for each data point. With a sample size of 8 patients per interventional arm, the study is powered at 0.80 to detect an elevation of 3.2 mmHg 20 from mean, assuming a standard deviation of 2.5 mmHg. Baseline data will be compared between groups using the students t test and Fisher exact test. A 2-sided p value of 0.05 will be considered statistically significant. The primary outcome measure mean IOP will be assessed using a 1-sided Student t test. 