What causes high intraocular pressure?

Many people do not understand why high intraocular pressure may occur. In fact, high intraocular pressure may be related to bad posture and diet in life, or eye diseases such as glaucoma, cardiovascular disease and cataracts may also cause these symptoms.

1. Posture and food factors

For a normal person, the intraocular pressure may rise by six mmHg when changing from a sitting position to a lying position. If you stand upside down, your intraocular pressure may rise by more than ten millimeters of mercury. Therefore, if glaucoma patients do yoga, we will advise them to avoid inverted movements as much as possible. In addition, drinking a large amount of fluid (such as 500CC) in a short period of time can increase intraocular pressure. Some medicines can also cause the side effect of increased intraocular pressure, the most noteworthy of which are medicines containing steroids. Regardless of the route of administration, whether oral, skin application, nasal spray or eye drops, as long as it contains steroids, there is a chance of this side effect.

2. Disease factors

Eye diseases such as glaucoma, diabetes, cardiovascular disease, iridocyclitis, cataracts, and myopia can all cause high intraocular pressure, and trauma can also cause high intraocular pressure.

3. Factors in daily life

Staying in the dark for too long; looking down or reading for too long; not getting enough rest and overworking; overeating; seasonal changes, such as winter.

4. Inspection method

There are two main methods for measuring intraocular pressure: finger pressure measurement and tonometer measurement. The finger measurement method is to let the patient look downward naturally. The examiner touches the eyeball lightly with the tips of his two index fingers from above the upper edge of the tarsal plate, and places the other fingers on the patient's forehead for support. The two index fingers press lightly alternately, and the level of eyeball pressure is estimated based on the fluctuation sense transmitted to the fingertips. Generally, normal is Tn, high intraocular pressure is T +1, 2, 3, and low intraocular pressure is T-1, 2, 3.