The nurse is assessing the eyes of a client who just received mydriatic eye drops. Which physiological function of the eye will not respond during the therapuetic period after administration of the eye drops?
Explanation & Rationale
A. Accommodation: Mydriatic eye drops cause dilation of the pupils, but they do not directly affect the eye's ability to accommodate or focus on near objects. Therefore, accommodation may still be functional, though it can be affected indirectly due to the dilated pupils. B. Pupillary constriction: Mydriatic eye drops are designed to dilate the pupils, so they inhibit or prevent pupillary constriction. This is the primary purpose of these drops, so pupillary constriction will not occur during their therapeutic effect. C. Refraction: Refraction refers to the bending of light as it passes through the eye to focus on the retina. This function is generally maintained even when mydriatic drops are used, though changes in pupil size can affect the amount of light entering the eye. D. Eye convergence: Convergence involves the inward movement of both eyes toward each other to maintain single binocular vision when focusing on a close object. While mydriatic drops primarily affect pupil dilation, convergence can still occur, though it may be affected by the degree of dilation.