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Cataracts: Early symptoms and prevention
Cataracts: Early symptoms and prevention. Everyone has cataracts. What are the early symptoms? Can it be prevented? In addition to age, factors that cause cataracts include genetics, radiation, trauma, metabolism, and malnutrition. Cataract is the eye disease with the highest blindness rate in the world.
There are many reasons for cataracts, the most important is age-related factors, which means that when we are old, everyone may get cataracts, but the age of onset is different.
In addition to age, factors that cause cataracts include genetics, radiation, trauma, metabolism, and malnutrition.
What is going on with cataracts?
If we compare our eyes to a camera, the lens in the eye is equivalent to the lens of a camera. From the perspective of anatomical images, light passes through the lens and directly hits the retina, which can form a clear image on the retina and transmit it to the brain. We can see things.
If the camera lens is cloudy, the light from the outside will be refracted when passing through the lens, and it will not be able to form a uniform light, and there will be no way to form a clear image on the retina. Medically, lens opacity is called cataract.
When a cataract occurs, it will cause the patient’s visual function to decline and blurry vision, which will also cause some behavioral disorders.
According to different causes, we divide cataracts into many types, such as congenital cataracts, traumatic cataracts, senile cataracts and so on.
Among them, common cataracts are generally senile cataracts.
The elderly must be vigilant! What are the early symptoms of cataract?
According to statistics, the incidence of cataract is 40%-50% for people over 60 years old.
How do we find cataracts earlier? Or what are the early manifestations of cataract?
① Changes in refractive status
Some patients with presbyopia were originally in their 40s, because of long-sightedness, their eyes were blurred. Suddenly in their 50s, they could see clearly.
Don’t think it is a good thing at this time. It is very likely that it is an early symptom of cataract, and there is a very obvious change in refractive status.
②The glasses can not correct the vision loss
Blurred vision appears. If you find that no matter how you add or subtract lenses, you will not be able to correct the decreased vision. It may also be a cataract. Be vigilant and go to the hospital for examination as soon as possible.
③Look at the light does not gather and scatter
In the early stages of cataracts, patients may find that the lights have a “tail” or a blush when they look at the lights at night, which also indicates that the lens texture is uneven and scattered.
④ Sudden increase in myopia
If the original normal vision suddenly changes to 400-500 degrees, or even 1000 degrees, it can be corrected by glasses, but after wearing for a period of time, the vision is not suitable. You must change a pair of glasses almost every six months. Be vigilant, it is very likely that the lens has undergone heterogeneous changes, causing eye disorders.
⑤The color of the object changes
In some elderly patients, in the early stage of cataract, the vision may also change in color, such as seeing white walls as pale yellow or yellow.
If the above symptoms occur, you must be vigilant and go to the hospital for examination in time.
3. Can cataract be prevented?
To prevent cataracts, we need to start with the cause of cataracts and stay as far away from the cause as possible.
We cannot control aging, but we can take some antioxidant drugs, such as vitamin C, vitamin E and the like. These drugs can delay the degree and speed of aging, including the aging of the lens.
In outdoor activities, we can reduce ultraviolet radiation by wearing sunglasses.
Trauma is also one of the factors that cause cataracts. We should try our best to avoid trauma.
Avoid metabolic factors
For patients with diabetes, hyperlactemia, and hyperuricemia, blood glucose and other indicators should be controlled to the normal range to ensure stable metabolism so as not to affect the lens.
(sourceinternet, reference only)