Do environmental factors influence excimer laser pulse fluence and efficacy?
OBJECTIVE
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.
Dantas
Paulo Elias Correa
PE
Department of Ophthalmology, Santa Casa of São Paulo, Brazil. pauloecdantas@uol.com.br
Martins
Cristiane Loiola
CL
de Souza
Luciene Barbosa
LB
Dantas
M Cristina Nishiwaki
MC
D004780:Environment, Controlled; D006801:Humans; D006813:Humidity; D020731:Keratomileusis, Laser In Situ; D008953:Models, Anatomic; D009216:Myopia / Q000601:surgery; D019904:Polymethyl Methacrylate; D013696:Temperature
D019904:Polymethyl Methacrylate