Blurred eyes in the forties are due to the fact that with age, the lens gradually hardens and becomes less elastic, as well as the contraction force of the ciliary muscle also becomes weaker with age, which leads to a loss of regulation and causes difficulty in seeing close up. It can be treated by improving eye habits, prescription lenses, surgery and other methods. 1. Improvement of eye care habits: It is necessary to pay attention to the improvement of daily care and living habits, and try to avoid staying up late or using electronic products for a long time, as well as develop good eye care habits, which can also help to relieve the discomfort caused by presbyopia. 2. Lenses: Presbyopia can be treated by wearing presbyopia lenses (i.e. convex lenses), which is a simple and practical method that can help improve vision and reduce the possibility of complications. 3. Surgery: Under the guidance of a doctor, patients can undergo surgical procedures such as corneal refractive surgery, lens refractive surgery or scleral dilatation surgery, which can help restore vision and improve the symptoms of blurred eyes. If there is obvious eye blurring, which affects daily life and work, you should go to the hospital in time to improve the relevant examination and take appropriate treatment.