Purpose: To evaluate excimer laser fluence after experimentally induced changes in room temperature and relative air humidity.
Methods: Excimer laser fluence was analyzed with a specific power meter under three different gradients of room temperature and relative air humidity as well as the reproducibility of myopic correction of -3.00 diopters in a polymethylmethacrylate plate test.
Results: Under the simulated environmental conditions, no significant difference in laser energy fluence and reproduction of myopic correction was observed.
Conclusions: In a setting with controlled temperature and relative air humidity, subtle changes in environmental factors do not appear to influence laser fluence and efficacy.