What effect do miotics have on the pupils during the treatment of glaucoma?

Miotics are medications that can constrict the pupils, leading to a condition known as miosis. This effect is particularly beneficial in the treatment of glaucoma, as it helps to increase the outflow of aqueous humor from the eye, thereby reducing intraocular pressure. The constricted (pin-point) pupils associated with miotics allow for better drainage of the fluid within the eye, which is crucial for managing glaucoma.

The mechanism of action involves stimulating the sphincter muscle of the iris, which results in the pupils narrowing significantly. This is contrary to the action of mydriatics, which are agents that cause dilation of the pupils. Understanding the pharmacological effects of miotics is essential for nursing practice, especially when monitoring patients receiving these medications for glaucoma.