Aging will bring many diseases, such as the lens aging of the eye, weakened elasticity, may form presbyopia.
Let's first take a general look at the visual characteristics of myopia, hyperopia, and presbyopia:
Myopia, manifested as being able to see clearly at close range and seeing clearly from a distance;
Farsightedness, manifested as inability to see clearly from close range, and in severe cases, it is impossible to see clearly from a distance;
Presbyopia is manifested as being unable to see clearly at close range and clearly seen from a distance.
Because presbyopia is a disease that occurs with aging, in general, people with normal vision will gradually appear presbyopia around the age of 45, and the degree will gradually increase with age until it reaches basic stability around the age of 60.
Many people may think that people with myopia will not get presbyopia, but in fact, they are wrong.
01 People with myopia and hyperopia will have presbyopia earlier
Myopia, especially in people with high myopia, the lens will gradually thicken, the eyeball will become longer, and the functions of focusing ability and flexible adjustment of vision will be weakened to a certain extent, but it is easy to appear presbyopia earlier than the orthopedic eye.
People with farsightedness may have relatively small eyeballs, and if they gradually degenerate with age, they will be more likely to have presbyopia than people who face their eyes, and some people may even appear at the age of 30.
In addition, after the image enters the eye, it needs to be transmitted to the brain for further processing, and if the transmitted nerves are abnormal or the brain function is reduced, it may also be prone to poor vision, resulting in presbyopia.
02 Eye strain is the main symptom
Due to the difficulty of reading eyes in close proximity, reading glasses are usually required to read books and mobile phones, and different degrees of eye fatigue may occur if you look a little longer.
Mild eye fatigue can show eye tiredness, soreness, tearing, headache and other manifestations, and if it is more severe, dizziness, dizziness, nausea, vomiting and other manifestations may occur.
These symptoms can be particularly severe in people with underlying medical conditions such as hypertension, diabetes, and inadequate blood supply to the brain.
If the appearance of presbyopia is not treated in time, the elasticity of the lens gradually decreases until the elasticity completely disappears, and the lens completely loses its regulatory function, which may lead to lens aberration syndrome.
At this time, the near and far may not be able to see clearly, and wearing reading glasses cannot be solved.
In addition, if the lens not only changes in form, but also changes in quality, that is, turbidity occurs, it will also develop into cataracts, in addition to not seeing clearly, there may be ghosting when looking at things.
In addition, presbyopia may also affect cognition, accelerate the emergence of Alzheimer's disease, and if secondary glaucoma, may also cause blindness.
Therefore, presbyopia is still recommended to intervene early.
So, what are the methods of intervention?
Correction of presbyopia is divided into non-surgical and surgical methods, and it is also necessary to pay attention to daily prevention and control.
/ Non-Surgical /
When looking at things nearby, you can temporarily use a magnifying glass, you can also match reading glasses according to your height, work habits, and living habits, generally the lower the degree of remote distance, and the higher the degree of reading glasses used at a close distance.
Reading glasses mainly have three types: single focus, dual light, and gradient multifocal.
Single-focus reading glasses are usually worn when looking at the near, taken off when looking at the distance, if there is also myopia or hyperopia, you need to add a degree to the reading glasses.
The upper part of the lens of the double-beam reading glasses is to look at the distance, and the lower part of the lens is to look at the near.
Choose double light reading glasses must be based on life and work habits, go to the hospital to try on, to see if the brain can adapt, master the balance. Poor mastery may lead to a feeling of imbalance between one foot high and one foot low when walking with reading glasses, which can easily lead to wrestling.
Gradient multifocal reading glasses can meet the needs of a pair of glasses to see different distances.
But the problem is that the visual range will be reduced, and the eye is needed to find the corresponding focus on the lens, such as switching from looking far to looking close, some people may have difficulty finding the right focus, so gradient multifocal reading glasses are not suitable for everyone.
/ Surgical Methods /
If you do not want to wear glasses, it is inconvenient to wear glasses, or if you have heavy symptoms of eye fatigue after wearing glasses, poor visual quality, and diseases such as a family history of glaucoma and cognitive dysfunction, you may need to choose surgery.
At present, the most widely used is intraocular lens replacement surgery, also known as transparent intraocular lens replacement surgery, which is very mature, the surgical accuracy is high, and there are few accidents. The surgical steps are as follows:
/ Daily Prevention and Control /
motion
Exercise is a good way to prevent and control presbyopia, more recommended is golf and other sports, the trajectory of the ball is clearly visible, there are far and near, can exercise the adjustment ability of the lens.
The speed of table tennis, badminton and other sports is too fast, it is difficult to really see clearly, and the eyes are too late to adjust, so they cannot play a good preventive role.
Exercise brain visual function
For example, flipper glasses (reverse beat), by constantly flipping glasses, exercising the ability of eyes and brain to adjust virtual reality, can delay the occurrence of presbyopia.
Try to maintain nutritional balance
Do not be partial to food, you can eat more vegetables, fruits, supplement a variety of vitamins, but also to maintain a good mood.
Health check-up
For people over 40 years old, it is recommended to do an eye health examination once a year.
References: Medical Microvision official website - Zhu Siquan Chief Physician "Presbyopia"