Experts say that age-related macular degeneration becomes the cause of blindness in the elderly
“Old-age macular degeneration”, a disease that is quite strange, is quietly developing in the city of Shanghai, and has exceeded eye diseases such as glaucoma, cataract and diabetic retina, and has become a blind person in the city.
At the recent International Ophthalmology Congress of the city, Professor Xu Xun, director of the Shanghai Visual First Clinical Clinical Center and director of the Department of Ophthalmology of Shanghai First People’s Hospital, wrote a report.
銆€銆€What he is most worried about is that the disease has a very low level of awareness and attention among patients in this city.
銆€銆€The macula is located in the center of the retina and is the most sensitive and critical part of human vision. It is mainly used for fine vision and color recognition.
Once the macula is damaged, vision will suffer severe damage and can even cause severe irreversible central vision loss.
Age-related macular degeneration mostly occurs in people over the age of 45. When the age is exceeded, the incidence rate occurs.
銆€銆€Doctors have linked the incidence of this disease to the level of regional development. They believe that the more economically developed regions, the incidence changes, and Shanghai has become the country with the highest incidence in the country.
According to a special survey of 100,000 people completed by the city hospital in Beixin District, the results show that age-related macular degeneration has exceeded glaucoma, repeated detachment and other eye diseases, becoming the leading cause of blindness in the elderly: “In people over 50 years oldThe incidence of the disease is as high as 15.
5%, of which 5 are.
The data on epidemiological surveys of people over 50 years old in Caojiadu Street, Jing’an District, Shanghai are similar. Among 159 subjects, 159 eyes were diagnosed with age-related macular degeneration.
In the age group of 50-59 years old, 60-69 years old, 70-79 years old and over 80 years old, the incidence rate detected was 5 respectively.
2% and 23.
This suggests that the prevalence of this disease increases significantly with age.
銆€銆€Xu Xun said that the growth rate of age-related macular degeneration in Shanghai has reached the point where the public must be vigilant and aware.
銆€銆€In China, the first cause of blindness is cataract, but in Shanghai, due to better medical conditions, the government has promoted cataract surgery in recent years, which makes most cataract patients get better treatment in time, which makes it feasible.The number of blindness caused by age-related macular degeneration jumped.
銆€銆€In addition, the incidence of age-related macular degeneration is also closely related to high blood pressure, high blood lipids and poor living habits, especially smoking and excessive, the risk factor of smoking people is twice as high as that of non-smokers.
Xu Xun said that age-related macular degeneration sometimes develops slowly and makes you notice no change in vision, sometimes it progresses rapidly.
It does not cause pain, but it deprives you of the ability to identify items in front of you.
Medical data also show that in patients with age-related macular degeneration, another eye will have a 40% chance of developing the disease within 5 years.
銆€銆€”The treatment of age-related macular degeneration is recognized by the ophthalmology community as one of the most difficult diseases to treat.
“Xu Xun is worried that the public’s awareness is currently too low.
The survey has not yet found that although the incidence is on the rise, only 2% of the adults surveyed believe that it is blinded by people over the age of 50, and 82% of the respondents are not familiar with age-related macular variations.
“A considerable number of patients go to the hospital after blinding one eye, but most of them are too late.
The main symptom of age-related macular degeneration is that the central vision is declining, and there is a black shadow on the center of the field of vision. This problem may not occur when the eyes are in sight, but when a single eye is used, a black shadow appears in the field of view.
In addition, the object will be deformed, the line will be curved, the horizontal line will become wavy, etc.; the distortion of the thing will also decrease, and the front is no longer a bright, clear picture, but it becomes gray and difficult to distinguish other images.
Preliminary clinical trials have shown that elimination of large amounts of lutein and zeaxanthin reduces the risk of age-related macular degeneration.
Lutein is a carotenoid that is found in many vegetables and fruits. Like carotene, it plays an important role in human health.
However, lutein cannot be produced in the body, it is found in green leafy vegetables such as spinach and egg yolk.