normal intraocular pressure

In general, the normal range of intraocular pressure is 10~21mmHg.

Intraocular pressure refers to the pressure exerted by the contents of the eyeball on the eyeball wall. Under normal circumstances, intraocular pressure in the human body is between 10~21mmHg. This pressure can maintain the normal shape of the eyeball, maintain the normal physiological function of the eyeball, and maintain good refractive state. However, from a clinical point of view, normal intraocular pressure is defined as the intraocular pressure range that does not cause damage to the optic nerve, so this value cannot be used to determine whether intraocular pressure is normal. For example, some myopic patients after laser surgery, intraocular pressure is relatively low, may only be 5~6mmHg, this situation is still normal intraocular pressure; some glaucoma patients although intraocular pressure within the reference range, but caused damage to the optic nerve, vision decline or visual field defect, this situation is not considered normal intraocular pressure.