[Binocular function clarified].

Normal binocular function is defined as the bifoveal connection of the central and peripheral structures of the visual system. Binocular function in strabismus is defined as connections, more or less strong and more or less labile, of the fovea of the fixating eye with the "pseudo-fovea" of the deviating eye including all central and peripheral structures, and this connection represents, in fact, a progress of adaptation of all parameters to the new conditions of vision.

[Skiascopy. Some reflexions on the prescription of optical correction].

The skiascopy allows determination of the objective eye refraction, but this exam should not be interpreted mechanically. The eye is a living organ and several subjective factors should be considered, mainly the accommodation and oculomotor equilibrium. Based on her own experience, the author discusses the difficulties she had in prescribing optical corrections for 7 patients, after she had done the skiascopy.