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Cataract is usually found in group of people aging 55 years and above. It is a natural change that is caused by the cloudiness of the crystalline lens.  It is causes an unclear vision just like looking through foggy glasses.

Laser Vision International LASIK center recommends you Phacoemulsification, an advanced and painless method of cataract removal. During cataract surgery, a tiny ultrasonic probe breaks up the cataract and draws it away. Because the incision required is only about 3 mm, this technique is often called small-incision surgery. It encourages rapid healing, and a fast return to full activity.

The new lens remains permanently in place and is neither seen or felt by the patient. The lens restores the most natural vision available as well as good depth perception and full peripheral vision.

Patients who are interested in Phacoemulsification surgery need to go through a thorough preoperative eye examination to determine when to do the surgery and which type of Intra Ocular Lens should be used.


Phacoemulsification refers to a modern cataract surgery in which an ultrasonic device is used to break up and then remove a cloudy lens or cataract from the eye to improve vision. The insertion of a foldable Intra Ocular Lens (IOL) immediately follows Phacoemulsification, but the capsule of the lens is remained. No suture is needed in this surgery, since the wound is very tiny and the cornea heals itself automatically. Phacoemulsification is the standard treatment for the cataract surgery at Laser Vision

One important instrument in providing modern after cataract care is YAG Laser. Although lasers cannot be used to treat cataract, they are helpful when secondary cataracts develop. In these cases, the clear capsule within the eye which holds the new artificial lens becomes cloudy. The YAG Laser uses light rays to make a small opening in the capsule right in the office painlessly and without traditional surgery. This opening restores good vision by allowing the light rays to focus clearly on the retina again. The procedure is required in about 20% of prior cataract patients, is only performed once, and takes only a few minutes with on restrictions afterwards.

Advantages of cataract treatment with Phacoemulsification

  1. Because of the small incision, which is self-sealing, the wound is more stable and the chances of the wound complication are minimized. After the surgery the patient can go to rest at home without admitting in the hospital.
  2. The patients can resume their normal activity whether it is walking, traveling or even exercising 2 weeks of post operation.

What is an intraocular lens?

Intraocular lens is an artificial lens is made from a special material with plastic side struts, called haptics, to hold the lens in place. The lens is implanted inside the eye during cataract surgery, replacing the cloudy crystalline lens.

เลนส์แก้วตาเทียม (Intra Ocular Lens)

Types of Intra Ocular Lens

  • Standard IOL is a normal lens, with a single focus. This lens helps you to focus at the long distance, but you will still use a reading glasses at the near distance.
  • Multifocal IOL is a lens with multi circle, providing simultaneous view of both distance vision and near vision. The patient might need some period of time to adjust their vision.
  • Toric IOL can correct the astigmatism, therefore, the patients with astigmatism after surgery, will no longer need the glasses. It can correct the astigmatism from 100 up to 300 Diopters

Preoperative Phacoemulsification Preparation

The Eye Examination : The patients who are interested in Phacoemulsification surgery must have a complete eye examination to decide when to have cataract surgery. Your ophthalmologist will probably:

Diagnose any refractive error you have and measure both the curvature of your cornea and the length of your eye to help determine the type and power of lens you will need. Examine the external parts of the eye, such as the eyelids, cornea, pupil and lens. Place drops in your eye to dilate your pupils, so the doctor can look closely at the back of your eye. If you have had laser vision correction before, the doctor may conduct additional tests and may ask you to obtain your pre- and post-operative LASIK data for reference, if possible.

Your ophthalmologist will also ask for a full health history, including what medications you are currently taking and what medications you have taken in the past. Certain health conditions, including diabetes, diabetic retinopathy, autoimmune diseases, glaucoma, corneal disease and age-related macular degeneration may need special discussion. Some of these may hasten or delay when you’ll need to have cataract surgery and may make you more prone to some complications.

The preoperative examination includes

  • If you are a contact lens wearer, they should be removed at least 3 days for soft contact lens and at least 7 days for
  • hard, semi hard or rigid gas permeable lens prior to the appointment date.
  • Due to the blurry vision that results after the dilatation of the pupil, it is recommended that the patient be accompanied by a relative or close friend. Dilation causes the eyes to become extremely light sensitive and the patient might not be able to drive a vehicle after dilating the pupil.
  • Bring all your current medications on the appointment. The doctor may recommend that you stop taking certain medications at least a few days prior to the operation. But it may be fine to continue other important medications.
  • Bring sunglasses is recommended.
  • It will take 2-3 hours for the complete eye examination.

Postoperative Care for the first day after the operation

  • In some cases, you may feel mild pain and the doctor may suggest you to take a mild pain reliever.
  • Take antibiotics as prescribed.
  •  Do not remove the bandage for the whole day until the next day of your check up.
  • Your eye may be sensitive to the touch and may be even scratchy for a few days.Be sure to avoid rubbing.
  • Get rest and try to keep the treated eye closed. We advise against watching TV or reading, since these activities will only irritate your treated eye.
  •  Do not carry any heavy stuff.
  • Consume light meals.

Postoperative Care for the first 2 weeks after the operation

There are a few precautions you need to know. For the first 2 weeks after cataract surgery, please follow these guidelines.


  • Do not rub or put pressure on the eye.
  • Avoid getting water and dust into your eye and do not rub your eye.
  • Avoid any smoky and dusty environments to prevent eye irritation.
  • Avoid sleeping on the side that has been operated on.
  • Do not bend your head down.
  • Avoid any eye make up. This includes mascara, eye shadow, eye liner, or any other type of makeup around the eyes. Lotions and lipsticks are allowed to be worn.
  • Avoid getting your hair into your eyes.
  • Avoid straining your eyes, especially at the time of constipation.
  • Avoid doing strenuous activity, especially bending and lifting heavy things.
  • Do not cough or vomit forcefully. Take some pills to control, if needed.


  • Wash your hands thoroughly before apply any eye drop and be careful with your treated eye.
  • Instill the medications as prescribed.
  • Cover your eye with the eyeshield nightly to prevent accidental contact.
  • Consume light meal or food that can be easily digested.
  • Resume light activities like reading, writing, watching TV and walking.
  • Wear sunglasses outside at all times to alleviate eye irritation.
  • Please come to check your eye as scheduled.

Post operative Check up

Every patient is asked to return one day after the surgery for your first follow-up visit, then one week after the surgery, one month, three months, and then one year. However as many eye and vision problems have no obvious signs or symptoms, therefore we recommend to have a yearly eye check up for maintaining your good vision and healthy eye always.