Glaucoma Precautions

Written by Zheng Xin
Ophthalmology
Updated on September 13, 2024
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Once glaucoma is confirmed, active treatment is necessary, such as medication or surgery. In daily life, the following points should be noted: First, do not stay in dark environments for a long time. Second, avoid excessive use of eyes and ensure to rest. Third, try to avoid drinking strong tea or coffee and do not drink a large amount of water at once. Fourth, avoid using drugs that can trigger glaucoma attacks, such as antispasmodics and antidepressants.

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Written by Peng Xi Feng
Ophthalmology
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What are the symptoms of glaucoma precursor?

The prodromal phase of glaucoma is characterized by transient or recurrent attacks, often occurring multiple times, typically in the evenings. During an attack, patients suddenly experience blurred vision and halos around lights, possibly accompanied by pain in the forehead on the affected side or a sour swelling at the root of the nose on the same side. These symptoms are short-lived and can resolve or disappear after rest. If examined immediately, increased intraocular pressure can be detected, often above 40 mmHg, with slight conjunctival congestion or no congestion. There is mild foggy edema in the corneal epithelium. The anterior chamber is extremely shallow, but the aqueous humor is clear, with a wide closure of the chamber angle, slightly dilated pupils, and sluggish light reflexes. After a minor attack subsides, aside from the characteristic shallow anterior chamber, there generally is no permanent tissue damage.

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Written by Zheng Xin
Ophthalmology
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Must glaucoma undergo surgery?

Glaucoma is a group of diseases characterized by pathological increase in intraocular pressure that causes damage to the optic nerve and visual field defects. The treatment for glaucoma can include conservative management and surgical interventions. The primary goal of treatment is to control intraocular pressure and delay the progression of optic nerve damage. Generally, intraocular pressure can be controlled with medication; if medication fails to control the pressure, surgery may be necessary to manage it.

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Written by Hu Shu Fang
Ophthalmology
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What are the symptoms of glaucoma?

Glaucoma refers to a group of eye diseases characterized by increased eye pressure, leading to optic nerve atrophy and vision loss. The symptoms of glaucoma are mainly caused by increased eye pressure, resulting in eye pain. In cases of acute angle-closure glaucoma, symptoms include eye pain along with nausea, vomiting, photophobia, and tearing, which can easily be mistaken for neurological diseases. Chronic glaucoma symptoms, such as headache, nausea, and vomiting, are less pronounced, and eye discomfort is also more concealed during attacks, making early detection difficult. Therefore, it is important for glaucoma patients to undergo early examination and diagnosis, and to receive appropriate treatment in order to protect the optic nerve and prevent severe vision loss.

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Written by Peng Xi Feng
Ophthalmology
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Glaucoma open angle vs closed angle differences

Primary glaucoma is clinically divided into two major categories: angle-closure glaucoma and open-angle glaucoma. The difference between them is that angle-closure glaucoma is due to a pre-existing abnormal configuration of the iris, leading to a mechanical blockage of the anterior chamber angle by peripheral iris tissue, which obstructs the outflow of aqueous humor, thus causing an increase in intraocular pressure. In contrast, open-angle glaucoma has a normal appearance of the anterior chamber angle, which remains open, and its increase in intraocular pressure is due to a pathology in the trabecular meshwork’s aqueous humor outflow system, increasing the resistance to aqueous outflow. Currently, the ratio of primary angle-closure glaucoma to primary open-angle glaucoma is about 3:1, making it the most common type of glaucoma in China.

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Written by Zheng Xin
Ophthalmology
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Does glaucoma require surgery?

There are many types of glaucoma, such as primary angle-closure glaucoma, open-angle glaucoma, and normal-tension glaucoma. Once glaucoma is definitively diagnosed, medication can be used first to control intraocular pressure. If medications cannot control the pressure, surgery may be considered. However, generally, if it is early stage, and there is no damage to vision or visual field, with not very high intraocular pressure, medication can be considered first. If the intraocular pressure remains very high, medication fails to stabilize it, and there is a decline in vision or damage to the visual field, then surgery is needed.