pupils isotonic is incorrectly written and should be written as 'isocoricas pupils' being its meaning:
The pupils are " 34 windows; located in the central part of the iris of the eye, darker colors, where it penetrates the light to the interior of the eye so the retina can see and interpret objects from the outside world. When pupils have the same size doctors call them isos ise ison isocoricas: equal and choros chorou: space, extension and volume. When they are unequal, they call them anisocoricas.