What department should you visit for nearsightedness?

Written by Hu Shu Fang

Ophthalmology

Updated on September 18, 2024

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People with nearsightedness should visit the ophthalmology department, as it is a major type of refractive error in outpatient services. Nearsightedness means clarity when looking at close objects, but blurriness when viewing objects at a distance. Currently, nearsightedness in adolescents is a significant health issue in China. Patients with nearsightedness should see an ophthalmologist at a qualified hospital for eye examinations to rule out any eye diseases, and then wear prescription glasses with the correct diopters to prevent the progression of nearsightedness. Additionally, those with nearsightedness must regularly visit the doctor to check their eyes.

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Written by Deng Jiang Tao

Ophthalmology

1min

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Does myopia correction rebound?

Will there be a rebound after myopia correction surgery? Generally, it relates to two aspects. The first is associated with your pre-surgery degree of myopia; the second relates to your habits in using your eyes after the surgery. Generally speaking, the higher the degree of myopia before the surgery, the more likely a rebound will occur. Roughly speaking, if your degree of myopia was above 700 degrees before the surgery, there's about a 20% to 30% chance of rebounding. However, a rebound does not mean it will return to the previous degree of over 700; typically, it might rebound by around 100 to 200 degrees. The second aspect is significantly related to your post-surgery visual habits. If, after the surgery, you frequently use computers, read documents, or use your phone, there’s a higher chance of experiencing some degree of rebound. Conversely, if your screen time is less, the proportion of myopia rebound tends to be smaller.

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Written by Zheng Xin

Ophthalmology

24sec

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What should I do if nearsightedness is inherited by my child?

Not all myopia is hereditary, but high myopia does have a genetic component. The occurrence of myopia is mainly related to genetic and environmental factors. If there are children in the family with a history of high myopia, they should develop good eye habits from a young age, or undergo genetic testing for high myopia. If myopia occurs, it can be corrected by wearing glasses, or by refractive surgery after reaching adulthood.

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Written by Deng Jiang Tao

Ophthalmology

38sec

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Where is the incision made for nearsightedness surgery?

Firstly, myopia surgery essentially involves thinning the cornea by cutting it, which is like transferring the degree of myopia onto the cornea itself. Let's first talk about the layering of the cornea. From front to back, the cornea is divided into five layers, generally consisting of the epithelial layer, anterior elastic layer, stromal layer, posterior elastic layer, and the corneal endothelial layer. Among these layers, the stromal layer is the thickest, about 500 microns, accounting for over 90% of the total corneal thickness. Therefore, during myopia surgery, the main area of cutting is in the stromal layer of the cornea.

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Written by Li Zhen Dong

Ophthalmology

46sec

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Does nearsightedness surgery require an incision?

There are two types of myopia surgery. One is performed using lasers, and the other involves making a small incision on the edge of the cornea to implant an artificial lens into the eye. Corneal laser surgery uses a laser to create a concave mirror on the cornea to resolve the symptoms of blurry vision when looking at distant objects. The ICL surgery, which involves the implantation of an artificial lens, significantly improves the patient's vision after the procedure. Both types of myopia surgeries are currently quite advanced in terms of technology. Therefore, patients who wish to stop wearing glasses and have clear indications from pre-operative examinations can consider undergoing myopia surgery treatment.

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Written by Li Zhen Dong

Ophthalmology

38sec

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Should the degree of myopia sunglasses be the same as the degree of myopia?

If you want to customize sunglasses or photochromic glasses with a prescription, the prescription should be exactly the same as that used for regular prescription glasses. The main purpose of these glasses is to protect the eyes from direct exposure to light, which can lead to excessive eye strain and cause symptoms like eye fatigue, pain, bulging, soreness, or the sensation of a foreign body in the eye. Typically, it is acceptable to use such glasses for prescriptions up to 500 degrees. However, it is generally not advisable for patients with high myopia, as these glasses do not provide clear vision.