Ophthalmology knowledge Q&A----Old age

- Jun 23, 2019-

How to properly protect your eyes, how to detect eye disease precursors as soon as possible, how to treat eye diseases reasonably... Give you an ophthalmology knowledge, pass on the concept of eye protection and health, improve the awareness of the whole people, and make your eyes become one Habits.


What is cataract?


Cataract is the opacity of the lens. The crystal of the eye itself is transparent, but as it ages it becomes turbid and becomes more pronounced, and the turbid area becomes larger and larger until it blocks light from entering the eye.


Can the elderly suffer from cataracts?


Cataracts are common in middle-aged and elderly people after the age of 40-45, but the degree and timing of the differences vary from individual to individual. It is recommended that the elderly should check frequently and do not ignore any abnormalities in the eyes.


What are the symptoms of senile cataract?


Generally, it is bilaterally ill, and the onset time can be sequential. The main manifestation is that the visual acuity is gradually decreased. There is a shadow moving with the eyeball in the early eyes, and the shadow will stop when the eyeball is still. In the future, as the condition develops, the shadow will increase the visual acuity, and in severe cases, it will block all the light and blindness.


Does diabetes cause eye diseases?


Ophthalmological diseases are one of the complications of diabetes, and account for 20-34% of the proportion. Patients usually have headaches and headaches. They ignore the treatment of eye diseases and miss the best time for treatment, leading to serious consequences. In fact, many patients find many diseases such as diabetes in ophthalmology examinations, so patients are advised to have regular eye examinations.


I always feel that there is a silky thing floating in front of me. What is the eye disease?


This is called a mosquito, which is more common in middle-aged or high-myopia patients. About 70% of patients are caused by vitreous opacity or vitreous liquefaction and posterior detachment. One-fourth of them may have lesions that threaten vision, the most important of which is the formation of retinal tears. Patients are recommended to have detailed examinations.


Why do people "eyes" when they are old?


Usually some middle-aged and old people like to buy the reading glasses they need in the stalls or some irregular places, and it feels quite clear when they are worn. This is a very wrong behavior. The finished glasses are fixed in degree, which is very difficult to match the degree that your eyes actually need. In addition, the individual differences are very large. The parameters such as the distance between the eyes and the height of the eyes need professional measurement. Can be determined. Glasses that don't exactly match your eye needs will affect your eyes for a long time.


What is glaucoma?


Glaucoma is one of the most common blinding eye diseases. The most obvious feature is that the intraocular pressure is elevated, which seriously threatens the optic nerve function. When the intraocular pressure exceeds the limit of the intraocular tissue, especially the retinal optic nerve, it will bring irreversible damage to visual function.


What are the symptoms of glaucoma?


If you have glaucoma, you may have eye swelling, dizziness, headache, nausea, vomiting, unclear vision, decreased vision, etc. In severe cases, blindness may occur; light people often mistakenly think that they have a cold. If the patient has elevated intraocular pressure or suspected glaucoma symptoms, he should go to a regular hospital for a comprehensive system check to prevent missed diagnosis.