pupil

Pupil distance, also known as PD, is the distance between the centers of the pupils of the eyes. It is an important measurement for ensuring that eyeglasses or contact lenses are properly fitted. PD can be measured by a variety of methods, including using a ruler, a PD ruler, or a pupillometer. It is important…

Pupillary dilation, commonly known as mydriasis, is an involuntary expansion or widening of the pupils in the eyes, leading to a decrease in visual acuity. Pupil dilation occurs due to the contraction of the radial muscle in the iris, the colored part of the eye. Understanding how to check pupil dilation is a valuable skill…

Checking pupil size is a crucial step in assessing a patient’s neurological health. Pupil size can indicate various conditions, such as brain damage, drug intoxication, and eye disorders. Therefore, healthcare professionals must have a thorough understanding of how to check pupil size accurately. The size of the pupils is controlled by the autonomic nervous system….