Orthopaedic surgery: basic concepts
Vision correction surgery, also known as refractive surgery, is a common treatment method to correct the refractive state of the eye through surgery. Its purpose is to improve vision problems such as myopia, hyperopia, astigmatism or presbyopia, help patients restore normal vision or reduce dependence on glasses or contact lenses. Zhongshan Eye Hospital is a well-known hospital specializing in visual correction surgery. The following details about the surgery.
The basic principle of visual correction surgery is to correct vision by changing the refractive state of the front surface of the eye and adjusting the focus position of light on the retina. There are several common methods for visual correction surgery, including LASIK, PRK and ICL. Each kind of surgery has its own characteristics and adapts to the population. It is necessary to select the appropriate surgical method according to the individual situation of the patient and the suggestions of the ophthalmologist.
Indications and contraindications of visual correction surgery
Visual correction surgery is a safe and effective treatment, but not everyone is suitable for it. Generally speaking, patients with the following conditions are usually suitable for visual correction surgery:
First of all, adults over the age of 18 have basically completed the growth and development of the eyeball.
Secondly, vision is stable, and problems such as myopia, hyperopia, astigmatism or presbyopia have not changed significantly in the past year.
In addition, patients must meet certain health standards and have no serious eye diseases or other potential pathological conditions.
However, there are some relative contraindications for visual correction surgery, such as:
Patients whose eyeball morphology does not meet the surgical requirements, such as thin or deformed cornea.
Patients with eye diseases such as autoimmune diseases or severe dry eye disease.
A woman who is pregnant or breast-feeding.
Preoperative examination and preparation for visual correction surgery
Before visual correction surgery, patients need to carry out a series of preoperative examinations and preparations to ensure the safety and effect of surgery. These checks typically include:
Comprehensive ophthalmic examination, including measurement of vision and intraocular pressure, examination of corneal morphology and structure, etc.
Corneal topography, corneal thickness measurement, fundus imaging and other special examinations were conducted to evaluate the corneal status and surgical feasibility of patients.
The corneal refractive status and the longitudinal axis length of the eyeball were evaluated to determine the appropriate surgical method and parameters.
In addition, preoperative preparation also includes informing patients of the risks of surgery and postoperative precautions, and discussing patients' expectations and expected effects with doctors.
Postoperative nursing and follow-up of visual correction surgery
Postoperative nursing and follow-up of visual correction surgery is an important link to ensure the operation effect and patient safety. Patients need to follow the doctor's advice after surgery, and pay attention to the following points:
Avoid rubbing your eyes with your hands to avoid the impact of external forces on your eyes.
Observe the regulations on medication and eye drops, and keep the eyes clean.
Avoid excessive eye use and exposure to dirty or irritating environments.
Visit again regularly so that doctors can check and evaluate the recovery of the eyes. According to individual conditions, the doctor may adjust the medication plan or suggest glasses registration in due course.
To sum up, visual correction surgery is a common ophthalmic treatment, which can help patients correct vision problems by changing the refractive state of the eye. Zhongshan Eye Hospital is a hospital specializing in this operation. Before accepting the operation, patients need to be checked and prepared before the operation. After the operation, they need to follow the doctor's advice for postoperative care and follow-up. However, not everyone is suitable for visual correction surgery, and patients need to make choices and decisions according to individual conditions and doctors' suggestions.
