Are All Irises the Same Size?

Normal ranges are 11.04 to 12.50 for males and 10.70 to 12.58 mm for females. In infantile glaucoma, the increased intraocular pressure may lead to abnormal growth of both cornea and iris, increasing corneal diameters to more than 13mm in adults (diameters of up to 18mm have been reported).

Is everyones iris the same size?

Muscles located in your iris (the colored part of your eye) control each pupil. While your two pupils will usually be roughly the same size, pupil size overall can fluctuate.

Why are some people's iris bigger than others?

The difference between the pupil sizes is more or less constant, even when the light changes, and is not usually of concern. Mechanical anisocoria: This type of anisocoria is the result of physical damage to the eye, such as an injury or a condition that causes inflammation to the eye.