Application of femtosecond laser surgery in ophthalmology department of Wuhan People's Hospital
The Ophthalmology Department of Wuhan People's Hospital is a professional ophthalmic hospital with advanced equipment and technology. Among them, femtosecond laser surgery is widely used in myopia correction surgery. Femtosecond laser surgery is to precisely cut the corneal tissue through the ultra fast pulse generated by the laser to change the optical characteristics of the eye and achieve the purpose of myopia correction. Although femtosecond laser surgery is effective in myopia correction, there are still some side effects. The side effects of femtosecond laser surgery will be described in detail from four aspects: vision recovery, dry eye, photosensitivity and visual quality.
Visual acuity recovery
After femtosecond laser surgery, the visual recovery time of patients varies with individual differences. Generally speaking, 1-2 days after surgery, the patient's vision will improve, but it may still appear blurred or slightly out of focus. About one week after the operation, the patient's vision will further recover, but there may still be slight visual interference. Most patients can fully recover their vision about one month after surgery, but some patients need a longer time. It should be noted that the speed and effect of postoperative vision recovery will be affected by many factors, including the patient's corneal thickness, the accuracy of surgical operations, etc.
In the process of vision recovery after surgery, patients need to follow the doctor's guidance, avoid overuse of eyes, keep eyes clean, and regularly review. If the postoperative vision recovery is abnormal, seek medical advice in time.
xerophthalmia
Femtosecond laser surgery may cause or exacerbate dry eye symptoms in patients. The symptoms of postoperative xerophthalmia mainly include dryness, burning, pain and blurred vision. This is due to the deformation and cutting of corneal tissue during femtosecond laser surgery, which leads to the stimulation and damage of corneal nerves, thus affecting the secretion and distribution of tears.
In order to prevent and alleviate dry eye symptoms after surgery, patients should receive a comprehensive eye examination before surgery to ensure that there is no other keratopathy or dry eye. After surgery, patients need to use artificial tear drops regularly to moisturize the eyes, and take anti dry eye drugs as recommended by the doctor. At the same time, avoid using eyes for a long time and prevent eye irritation, such as smoke, dust, wind and sand. For patients with severe dry eye, additional treatment may be required.
Photosensitivity
Femtosecond laser surgery will increase the sensitivity of patients to light after surgery. This is due to the stimulation of corneal tissue and the change of photosensitive pigment during surgery. After surgery, the patient may feel sensitive to bright light, with tingling, irritation, blurred vision and other symptoms. This kind of photosensitivity usually gradually reduces in a few weeks after surgery, and finally returns to normal.
After surgery, patients should pay attention to protecting their eyes from exposure to strong light, and wear sunglasses to reduce the discomfort of photosensitivity symptoms. If the photosensitivity symptom is serious or lasts too long, it is recommended to seek medical advice in time.
visual quality
Femtosecond laser surgery changes the cornea of the eye, which may affect the visual quality of patients. Although most patients can achieve obvious myopia correction effect after surgery, some patients may still have visual distortion, double shadow or halo. This is mainly related to the corneal cutting area, diopter adjustment and other factors.
Before surgery, the doctor will evaluate the patient's eye condition and expected correction effect, and inform the patient of possible visual quality problems. After surgery, patients need to report the changes of visual quality to doctors in time and receive regular reexamination. If there are visual quality problems, the doctor may make adjustments or further treatment.
Summary
Femtosecond laser surgery in Wuhan People's Hospital ophthalmology for myopia correction, has achieved remarkable results. However, patients should fully understand the postoperative side effects when choosing surgery. The time of vision recovery varies from individual to individual. Dry eye may become worse or appear, photosensitivity may also increase, and visual quality may be affected to some extent. In order to reduce side effects, comprehensive preoperative examination and postoperative maintenance are very important. Patients should cooperate with the treatment and reexamination according to the doctor's suggestions to obtain better postoperative effects and visual health.
