In discussing this topic it will be well to keep in mind the distinction between mydriatics and cycloplegics, remembering that the former, in so far as they are mydriatics only, dilate the pupil without affecting the ciliary muscle, and that the effect desired in the latter is to suspend the action of the ciliary muscle and so paralyze the accommodation. While there is no known cycloplegic which does not at the same time dilate the pupil, there are mydriatics which have but little effect on the accommodation.
It is probable that our committee, in arranging the subjects for special discussion at this time, had more particular reference to the use of a cycloplegic in refraction work after the age of 45. but the writer has had no intimation that this is the case, and the topic will receive a somewhat broader treatment. While the main discussion will center about such
STARKEY HM. THE USE OF A MYDRIATIC AFTER THE AGE OF FORTY-FIVE.. JAMA. 1903;XL(16):1075-1078. doi:10.1001/jama.1903.92490160027001j