Does nearsightedness surgery require an incision?

Written by Li Zhen Dong
Ophthalmology
Updated on November 28, 2024
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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 Hu Shu Fang
Ophthalmology
1min 20sec home-news-image

How can children with myopia recover their eyesight?

Children with myopia should go to a formal optometric center for eye examinations and to get properly prescribed glasses. After wearing glasses, it is important in daily life to not read or write in dim environments and to maintain a correct posture while reading or writing. Abide by the "rule of three": the distance between the eyes and the book should be about one foot; the distance between the body and the desk should be about one fist; and the distance from the tip of the pen to the holding point should be about one inch. This can help prevent the deepening of myopia in children. Additionally, after using the eyes for forty minutes, it is recommended to gaze into the distance or perform eye exercises to relieve eye fatigue. Children should engage in outdoor activities for more than two hours per day, and more than fourteen hours per week, and they should have regular check-ups, generally every six months, to ensure the prescription of the glasses matches the degree of myopia. Currently, there are also options like orthokeratology lenses that can be worn at night to effectively control the progression of myopia.

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Written by Tao Yuan
Ophthalmology
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Can people with high myopia and floaters undergo myopia surgery?

Patients with high myopia who experience floaters can also undergo myopia correction surgery to eliminate nearsightedness. However, symptoms of floaters will not improve after the surgery. The commonly used myopia correction surgeries include laser surgery and the implantation of a posterior chamber intraocular lens for aphakic eyes. Patients need to visit the ophthalmology department of a hospital for optometry, corneal topography, and A-scan ultrasound examinations. The type of surgery is then determined based on the condition of the eyes. Floaters are caused by the clouding of the vitreous body within the eye due to aging. They can be treated with oral medications to promote absorption. For example, currently, lecithin complex iodine tablets can be taken, but the absorption is slow, requiring patients to adhere to regular treatment. (Please follow the doctor's advice when taking medication.)

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Written by Zheng Xin
Ophthalmology
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Does nearsightedness surgery involve holding the eyelid open?

Eye surgery, apart from eyelid surgery, requires the use of a speculum to hold the eyelids open to fully expose the field of vision for surgeries involving the eyeball and the inside of the eye. Myopia surgery, which involves the surface of the eyeball, also necessitates holding the eyelids open. The surgery can then be performed with the aid of a laser.

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Written by Zhou Qing
Ophthalmology
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How to treat high myopia?

High myopia refers to a degree of nearsightedness above 1000 degrees. High myopia brings great troubles to people, even affecting their diet and preventing them from participating in high-intensity physical exercise. It may also lead to complications such as retinal detachment, cataracts, macular hemorrhage, macular degeneration, vitreous liquefaction degeneration, and glaucoma. The treatment of high myopia has always been a major challenge in ophthalmology. With the advent of refractive lens exchange surgery, after extensive clinical practice, it has now become a better option for correcting vision in patients with extremely high myopia. The refractive state of the eyeball is mainly determined by the refractive power of the eyeball and the length of the eye axis. In cases of nearsightedness, the lengthening of the eye axis causes the light to focus in front of the retina, making it difficult for patients to see distant objects clearly. During refractive lens exchange surgery, a concave lens specifically tailored to the patient is implanted into the eyeball to change the focal point of the light so that it accurately focuses on the retina, achieving the purpose of correcting nearsightedness. Refractive lens exchange surgery maintains the integrity and accommodative function of the eye's physiological structure, has a larger optical zone, eliminates aberrations, and has a wider range of adaptability compared to corneal refractive surgery. Post-surgery, patients experience less discomfort, faster vision recovery, stable refraction, and no regression phenomenon.

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Written by Zheng Xin
Ophthalmology
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Can glaucoma patients undergo myopia surgery?

Glaucoma is a group of eye diseases characterized by atrophy of the optic nerve and defects in the visual field. Common symptoms include reduced vision, eye pain, and loss of visual field. In terms of treatment, it primarily involves the use of medications to control eye pressure or anti-glaucoma surgery to manage eye pressure, which helps delay the atrophy of the optic nerve and the loss of vision. However, since glaucoma has already caused damage to the optic nerve, it is generally not recommended to undergo myopia surgery, as it cannot improve vision.