What are the preoperative examinations of femtosecond surgery in Guangdong People's Hospital? How long will it take?

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Preoperative examination of femtosecond surgery in Guangdong People's Hospital

Femtosecond laser surgery is a common method to correct myopia. The premise is that patients should undergo a series of preoperative examinations to ensure the safety and effectiveness of surgery. As a professional ophthalmic hospital, Guangdong People's Hospital will conduct detailed preoperative examinations for patients before femtosecond surgery to ensure the success of the operation.

Corneal topography

Corneal topography is one of the most important examinations before femtosecond surgery. Through this examination, doctors can understand the patient's corneal curvature, corneal diopter, corneal thickness and other data, so as to help doctors determine the parameters and scheme of surgery. Corneal topography examination is mainly performed with corneal topography instrument or refractor. Patients only need to stare at the instrument, painless and non-invasive, and the examination time is about 5-10 minutes.

Fundus examination

Fundus examination is to exclude eye lesions or other potential eye problems, so as to ensure the safe operation. Through fundus examination, doctors can observe the condition of retina and optic nerve and exclude any factors that may affect the operation. Fundus examination is usually performed with fundus camera or optometrist. Patients only need to stare at the instrument, painless and non-invasive, and the examination time is about 10-15 minutes.

Intraocular pressure test

The purpose of intraocular pressure examination is to exclude whether the patient has elevated intraocular pressure, so as to ensure the safe operation. High intraocular pressure may increase the risk of surgery, so it must be checked before surgery. The intraocular pressure test is mainly performed with a non-contact tonometer. The patient only needs to stare at the instrument, painless and non-invasive, and the test time is about 5 minutes.

Diopter test

The diopter test is to accurately measure the patient's diopter, so as to determine the corrective force and scheme of surgery. The diopter test mainly includes two methods: automatic computer optometer and adjustable optometer. Through these tests, doctors can determine the patient's diopter, astigmatism, correction degree and other parameters. The diopter test is generally performed by the optometrist. The patient only needs to stare at the instrument, painless and non-invasive, and the test time is about 15-20 minutes.

Summary

Before femtosecond surgery, Guangdong People's Hospital performed preoperative examinations, including corneal topography, fundus examination, intraocular pressure examination and diopter examination. These examination items comprehensively and accurately understand the patient's eye conditions and potential risks, so as to provide safety guarantee for surgery. Through these examinations, patients can more confidently perform femtosecond surgery to restore vision.