Mydriatic eye drops are given to a patient before an examination of the internal eye in order to

It is to dilate the pupil, that the reason why mydriatic drops are given to the patient before examination.   A slit lamp examination includes viewing the lens and anterior chamber, in bright light the muscle of the iris contract, reducing the size of the pupil in order to keep more light from going inside the eye the process is called miosis.

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.