Q:

Why are my pupils big?

A:

The primary reason pupils enlarge is to allow more light into a person's eye when in a dark room or area, according to Healthgrades. When people go in for certain eye exams, the eye doctor uses drops to dilate or enlarge the pupils to examine the eyes better.

Know More

Full Answer

Cough and cold and decongestant medicines often cause a person's pupils to enlarge, according to Healthgrades. Cocaine and marijuana also cause pupil enlargement; however, the enlargement caused by drugs typically goes away after the effects dissipate. Health conditions, such as a stroke or tumor, can cause enlargement. Unlike a drug-induced enlargement, these medical triggers may impact only one pupil.

Learn more in Vision
Sources:

Related Questions

  • Q:

    What causes wavy vision?

    A:

    Causes of wavy vision include glaucoma or increased pressure in the eye, an eye injury, and retinal detachment, according to Healthgrades. In addition, conditions emanating from the head or other parts of the body may lead to vision distortion. Other causes of wavy vision include infection, trauma, inflammation and malignancy.

    Full Answer >
    Filed Under:
  • Q:

    What is a rodding eye?

    A:

    A rodding eye is a removable cover on the opening within a drain pipe that helps remove an obstruction by drain rods. It is also called a "cleaning eye" or "access eye." A rodding eye can also be defined as a pipe fitting that provides access for cleaning and inspection.

    Full Answer >
    Filed Under:
  • Q:

    What is an eye stye?

    A:

    A stye, also known as a hordeolum, is a lump on the eyelid that looks similar to a pimple, according to the Mayo Clinic. Styes most commonly form on the exterior of the eyelid, but they can also form on the inside of the eyelid. The stye is usually painful and filled with pus.

    Full Answer >
    Filed Under:
  • Q:

    What is eye pressure?

    A:

    Eye pressure is known as intraocular pressure, which is measured in millimeters of mercury. A high level of pressure in the eye is often indicative of ocular hypertension, according to WebMD. Since symptoms are rarely present in early stages of ocular hypertension, regular eye exams are important.

    Full Answer >
    Filed Under:

Explore