Pinpoint pupils occur when the pupils shrink to a small size. This can be due to various conditions and medications, such as prescription opioids, hypertension medications, and eye inflammation. In ...

A person’s pupils may be of different sizes (anisocoria) for several reasons, including physical trauma, response to light, and infection. The condition may also be present from birth. Pupils, or the ...

The dark part of your eye is called the pupil. Pupils can grow or shrink according to different lighting conditions. Other factors, such as drugs, can also affect pupil size. Read on to find out which ...

Pupils naturally dilate in low light to allow more light into the eye, and also due to emotional or mental stimuli. Other causes of dilated pupils include medications given during an eye exam, various ...

The size of your pupils varies throughout the day, but most people’s pupils fall within a particular size range. We’ll look at when and why your pupils change size. First, the range of “normal” pupil ...

You have probably heard the saying that the eyes are the windows to the soul, but now it turns out that they are also connected to how we breathe. Scientists have long studied the size of our pupils ...