Cataract Surgery

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What is Cataract?

Cataract is clouding of the lens in the eye. Early cataracts do not have any obvious symptoms, but when the condition is severe, blurred vision, glare, dimming of the scene, and monocular double vision may occur. Surgery is the only cure for cataracts. Currently, cataract surgery is  going more mature - The wound is small, and the recovery is fast. During cataract surgery, the doctor removes the cloudy lens and inserts an artificial lens.

Causes of Cataracts
The Symptoms of Cataract
The process of Cataract Surgery
The doctor makes a small hole in the cornea of the eye after local anesthesia
Ultrasound is used to emulsify cloudy cataract crystals into fine fragments, which are then sucked away with a straw
Finally, the doctor will insert an intraocular lens.
Options for intraocular lenses

Monofocal Lens

Multifocal Lens
(Extended depth of focus (EDOFs))


a fixed single focus

have an elongated
focus and a deeper depth of vision


provide far, medium and near vision clarity, after surgery or need to wear
glasses. If you want to reduce your dependence on glasses after a single
focal length artificial chip, you can use Monovision therapy, which uses the
chip to adjust one eye to see near and the other to see far things. The brain
needs time to adapt after surgery. Your doctor will assess suitability before

lenses have an elongated focus and a deeper depth of vision than conventional
monofocal lenses. It achieves satisfactory far and intermediate visions, but
the near vision is weaker than multifocal lenses.

of Toric Lens




to focus both near and far vision

Not as sharp as
multifocal lens

My cataract is immature and cannot have surgery?

With the advancement of technology, patients can receive treatment without waiting for the cataract to mature.
The higher the maturity of the cataract, the difficulty of treatment will also increase accordingly, so it is not recommended to wait until the cataract is mature. Therefore, when patients feel that their daily life is seriously affected, they should actively consider cataract surgery.

How long does cataract surgery take? Need to stay at hospital?

Generally, cataract surgery is performed under local anesthesia or topical anesthesia, followed by surgery under a microscope, which takes about 20 minutes. The patient does not need to stay at hospital and can go home on the same day after the operation.

Do intraocular lenses need to be replaced regularly like glasses?

The clarity of the implanted intraocular lens is expected to last for a lifetime, so the intraocular lens generally does not need to be replaced.

How long will it take to return to normal activities after the operation?

Under normal circumstances, one day after cataract surgery, you can use mobile phones, watch TV and computers. Due to the brightness of the electronic screen, it may cause some discomfort to the eyes, but it will get better with time.

In terms of exercise, simple, non-contact sports (such as hiking, walking, etc.) can be performed 24 hours after the operation, but swimming may cause eye infections, so it is recommended to swim by 7 days after the operation.

What precautions should I take after Cataract surgery?
  • Avoid touching eyes and rubbing eyes
  • Use eye drops as directed by your doctor
  • Pay attention to clean eyes, please use cotton or sterile cotton to remove eye secretions
  • Avoid alcoholic beverages and spicy foods
  • Wear loose clothing so you can wear it without touching your eyes
  • Sunglasses must be worn during daytime outdoor activities
  • Do not make up, dye or perm your hair for 1 to 2 weeks after surgery.
  • Please avoid driving and strenuous exercise within 1 to 2 weeks after surgery, such as cycling, jogging, swimming or aerobic exercise, or consult your doctor if possible.
  • Sleeping on your back and wearing an eye mask is recommended to prevent inadvertent eye contact while sleeping and reduce the risk of infection and irritation after surgery.
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Cataract Surgery
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