If your eyeball is too hard, be careful of glaucoma!

In addition to stabilizing blood pressure, stabilizing intraocular pressure is equally important in life.

Normal intraocular pressure is 10~21mmHg. An important part of the source of pressure in the eyeball comes from the fluid in the eye - aqueous humor. The aqueous humor is secreted by the ciliary body, and then flows from the posterior chamber of the eye through the pupil to the anterior chamber of the eye to be discharged, so that the intraocular pressure is maintained within a stable range. Stable intraocular pressure can maintain the normal shape of the eyeball and the visual function of the eye.

Intraocular pressure is similar to blood pressure, with fluctuations and rhythms. Most people have higher intraocular pressure in the morning, the lowest in the evening, and higher in winter than in summer. Too high or too low intraocular pressure will damage eye tissue and visual function to varying degrees.

In particular, pathological increase in intraocular pressure is the main risk factor for glaucoma. When intraocular pressure exceeds the limit that the individual optic nerve can bear, it may cause optic nerve atrophy and damage to visual function, making it easy to develop glaucoma.

Li Fuhua, director of Tianjin University Aier Eye Hospital, said that glaucoma is a group of eye diseases with characteristic optic nerve damage and visual field defects, and the common cause is pathological increase in intraocular pressure. Due to its irreversible characteristics, once visual function is damaged or even blind, it is irreversible. The early symptoms of glaucoma are eye swelling and pain, nausea and headache, decreased vision, etc. If the above symptoms occur, go to the hospital for examination in time and actively control the intraocular pressure to a safe range.

A simple way to self-test intraocular pressure

Look down with both eyes, use the tip of your index finger to gently press the upper eyelid to feel the hardness of the eyeball. The normal intraocular pressure value should be similar to the hardness of the nose tip. If it is similar to the lips, it may be low intraocular pressure. If it is as hard as the forehead, it may be high intraocular pressure.

This self-test method can roughly estimate whether the intraocular pressure is normal. If you often feel eye pain and discomfort, you should go to the hospital for further examination to see if you have glaucoma or other eye diseases.