How to early diagnose chronic simple glaucoma?
summary
Glaucoma is the optic nerve damage caused by the intermittent or continuous increase of intraocular pressure in patients, which leads to the decline of vision and even blindness. Therefore, the increase of intraocular pressure is the main cause of glaucoma. How to early diagnose chronic simple glaucoma? Now let me tell you something.
How to early diagnose chronic simple glaucoma?
Glaucoma is characterized by irreversible damage of retinal nerve fiber layer and ganglion cells, which is the primary damage site of glaucoma. Therefore, the evaluation of retinal nerve fiber layer is very important. The evaluation of retinal nerve fiber layer is more significant for the early diagnosis of glaucoma,
Some researchers found that more than 50% of the retinal nerve fiber layer had been damaged when visual field damage was detected; Another study showed that 60% of the patients with visual field defect had the defect of nerve fiber layer 6 years before the visual field defect. Therefore, one of the key points in the early diagnosis of glaucoma is the evaluation of nerve fiber layer thickness.
At present, there are four commonly used evaluation methods: fundus stereography, GDx, HRT, and Oct. You don't have to worry too much about what these obscure English letter combinations mean. You just need to know that they use different optical techniques to measure the thickness of retinal nerve fiber layer. Fundus stereophotography is a traditional method, but it needs to be evaluated by an experienced glaucoma doctor. It is affected by subjective factors, and there are many optic disc variations, sometimes it is difficult to evaluate.
matters needing attention
As glaucoma patients, we should have a detailed understanding of the main causes and symptoms of glaucoma, so as to find their own diseases early, so as to take the correct preventive treatment, consult the relevant doctors in the hospital, carry out the correct scientific drug or surgical treatment, strive to control the disease and avoid the excessive decline of vision.