What causes high eye pressure?

High intraocular pressure, also known as ocular hypertension, usually occurs when excessive aqueous humor is produced within the eye or its drainage is impaired, leading to increased pressure inside the eye. The main factors that may cause elevated intraocular pressure include: 1. **Impaired aqueous humor circulation**: If the outflow pathways of the aqueous humor are damaged or functioning poorly, reduced drainage of aqueous humor may occur, resulting in elevated intraocular pressure. 2. **Genetic factors**: Ocular hypertension may have a familial inheritance tendency; certain individuals may be born with genes that cause abnormal drainage of aqueous humor. 3. **Long-term use of steroid medications**: Certain corticosteroid drugs can increase intraocular pressure, especially with prolonged or high-dose usage. 4. **Eye diseases**: Conditions such as glaucoma, cataracts, and ocular trauma may interfere with the regulation of intraocular pressure. 5. **Lifestyle habits**: Prolonged reading, watching television, or working in dim lighting may temporarily elevate intraocular pressure. Please note that if left uncontrolled, ocular hypertension may increase the risk of developing glaucoma, which can lead to optic nerve damage and vision loss. If you have concerns or experience symptoms, seek medical attention promptly.