Mydriatics are medications used to dilate the pupils of the eyes. They work by relaxing the muscles in the iris, allowing the pupil to widen. This dilation is often necessary for eye examinations, enabling doctors to better view the interior structures of the eye, such as the retina and optic nerve. These medications can be administered as eye drops and may cause temporary sensitivity to light and blurred vision. Common types of mydriatics include tropicamide and phenylephrine. While generally safe, they should be used under the guidance of a healthcare professional to avoid potential side effects.