Kentucky Medication Aide (KMA) State Practice Exam

What is the effect of mydriatic drugs?

1. Constrict the pupil

2. Dilate the pupil

3. Reduce mucus production

4. Relieve coughing

The correct answer is: Dilate the pupil

Mydriatic drugs are specifically designed to dilate the pupils of the eyes, a process known as mydriasis. This effect is particularly useful during eye examinations, allowing healthcare professionals to get a better view of the interior structures of the eye, such as the retina and optic nerve. Mydriatic agents work by relaxing the iris sphincter muscle, which is responsible for constricting the pupil. This dilation can help in diagnosing various ocular conditions and can also be a part of treatment for certain eye diseases. It's important to remember that mydriatic effects are distinct from those of other types of medications or interventions, such as those that would constrict the pupil or those that impact respiratory functions, like reducing mucus production or relieving coughing.