• Welcome to our healthcare knowledge. Here you can find healthcare reliable information from the hospital to help educate yourself
  • Welcome to our healthcare knowledge. Here you can find healthcare reliable information from the hospital to help educate yourself
  • Welcome to our healthcare knowledge.Here you can find healthcare reliable information from the hospital to help educate yourself
  • Welcome to our healthcare knowledge. Here you can find healthcare reliable information from the hospital to help educate yourself
   
 
         
         
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LASIK Eye Surgery

Welcome to the Center for Information of LASIK Eye Surgery

At Eye Center of Bangkok Hospital Phuket we provide comprehensive eye care including treatment of ocular disease and understand that as a patient thinking about undergoing an ophthalmic procedure you have many questions.

Below you'll find a list of some of the most commonly asked questions we receive from those interested in learning more about LASIK procedures. If you have additional questions, kindly contact us and we will be happy to find the right answer for you.

Remark: The content herein is meant for educational purposes only, now that lasik treatments are currently unavailable at Bangkok Hospital Phuket.

LASIK Eye Surgery

The eye surgery operation has 2 ways:

  1. LASIK (laser-assisted in situ keratomileusis)
  2. PRK (Photorefractive Keratectomy)

 


 

What is LASIK?

Health Knowledge

What is LASIKLASIK is one of a number of solutions for correcting nearsightedness, farsightedness andastigmatism. With LASIK, the Microkeratome is used to shave the cornea to create a flap. The flap then is opened to expose tissue just below the cornea’s surface. Next, the Excimer laser isused to remove ultra-thin layers from the cornea to reshape it to reduce nearsightedness or farsightedness and astigmatism. Finally, the flap is returned to its original position, without sutures.

LASIK is corneal laser eye surgery, which Bangkok Phuket Hospital LASIK Center provides you with a Specialist in:

  • corneal
  • refractive surgery
  • the latest Excimer Laser (Wavefront & Non-wavefront System)
  • NIDEK EC-5000 CXIII (Excimer Laser), which was approved by FDA (USA) about NAVAX 4th Generation LASIK

 

Benefit from NAVAX 4th Generation LASIK

Health Knowledge

This ultra-modern machine has been developed to have more efficiency to over come various factors that some ex-models were unable to provide, such as:

  1. Eye Tracker System
  2. Adding more accurately Astigmatism correcting Program (TED)
  3. Multipoint laser program (increased ability)
  4. Was approved by FDA (USA) about NAVAX 4th Generation LASIK.
  5. To save more corneal area
  6. Reducing night vision problems

 

What is Presby LASIK (Multifocal)?

Health Knowledge

Presby LASIK is the correction of Presbyopia and/or near vision, which reshapes the cornea having multi-focus ability to provide far and near vision concurrently. However your brain must need 1-3 months to learn to “select” certain images and “suppress” other images depending on what you are trying to see. This requires some level of adaptation for most patients.

 

What is Monovision LASIK?

Health Knowledge

Monovison, is the correction of Presbyopia and/or near vision: one eye-usually the dominant eye-is corrected for distance vision and the other eye is corrected for near vision. Depending on the distance trying to see, your brain will again “select” the focus image and provide you with an approximation of concise seamless vision. Statistically 1 in 10 people may not be satisfied, so your eyes should be stimulated by using glasses or contact-lens before operation.

 

What is PRK?

Health Knowledge

PRK (Photorefractive Keratectomy) is the only use of device know as an Eximer laser without the Microkeratome to reshape the cornea’s surface to reduce nearsightedness or farsightedness and astigmatism. After remove Epitilium cell, its curve will be suitable with eyeball’s length and then make your eye become to normal vision again. Then your eyeball will be covered by contact-lens for healing its wound. This way is suitable for someone who hasn’t too farsightedness or too shortsightedness.

Normal vision (proper vision)
What is LASIKProper curve of the cornea and proper size of the eyeball makes proper light integration. Proper light integration falls correctly onto the retina which enables the eyes to see clearly in both short and long vision.

Why is your vision unclear?

Nearsightedness or Myopia
Nearsightedness or MyopiaIt is caused by the improper curve of the cornea or the eyeball is too long which makes too much light integrate compared to the size of the eyeball. It makes the light integration fall in front of the retina. This creates a clear vision only in a very short sight. The long vision will be unclear.

Farsightedness or Hyperopia
Farsightedness or HyperopiaIt is caused by a too flat of a cornea or too short of an eyeball which makes less light integrate comparing to the length of the eyeball. The integration of the light will fall behind the retina and creates unclear vision to both short and long sight.

Astigmatism
AstigmatismUnequal curve of the lines of the cornea makes unequal light integration of each line which result in multiple and unclear pictures in both short and long vision.

 

 

Presbyopia

Health Knowledge

AstigmatismPresbyopia is a loss of flexibility of the crystalline lens of your eyes that causes a gradual progressive decrease in focusing ability. The loss of focusing ability results in a inability to see near object and thus blurs your vision for near tasks such as reading. Presbyopia typically becomes noticeable between age forty and fifty and progressively worsens through age sixty-five. Currently there are 2 types of corneal laser eye surgery to correct Presbyopia and/or near vision:Monovision and Multifocal.

  • Monovision, is the correction of Presbyopia and/or near vision: one eye-usually the dominant eye-is corrected for distance vision and the other eye is corrected for near vision. Depending on the distance trying to see, your brain will again “select” the focus image and provide you with an approximation of concise-seamless vision. Statistically 1in 10
    people may not be satisfied, so your eyes should be stimulated by using glasses or contact-lens before operation.
  • Multifocal, (Psuedo accommodative) is the correction of Presbyopia and/or near vision,which reshapes the cornea having multi-focus ability to provide far and near vision concurrently. However your brain must need 1-3 months to learn to “select” certain images and “suppress”

 

Candidate

Health Knowledge
  1. Must be at least 18 years of age and have had stable vision for at least one year.
  2. Have no corneal diseases or other eye diseases, Thyroid, SLE, and Keloid.
  3. Not be pregnant or breast feeding.
  4. Have a complete understanding of the advantages and disadvantages of the surgery.
  5. Have a realistic expectation of the out come.
  6. No medications that can affect Hormone are unstable to due with accurate refractive data.
  7. Have vision stability at least 1 year.

 

Procedures

Health Knowledge

You should refrain from wearing contact lenses prior to the examination and the operation (Soft lenses: At least 3 days prior and Hard or semi-hard lenses: At least 1 week prior to the examination), an accurate analysis needs the cornea to
return to its normal shape.

  1. Eyes Examination Process it takes approximately 2-3 hours for the examination. (The dilating medication affects the eyes from 4-6 hours, please bring sunglasses with you and take a taxi or have a friend or family member drive you.)
    • Start with checking vision ability, auto-refractive by machine then OPD-scan (Wavefront scanning) to measure the precise imperfection of the eyes from the cornea to the optical system with Wavefront scanning revealing 3-Dimension-Mapping of the cornea.
    • Manifest Refraction to measure refractive error.
    • Dilate eyes to check the optical system.
    • Pachymeter to check the cornea's thickness.
    • Meet the ophthalmologist to cyclopegic refraction and to analyze corneas' data and possibility to have LASIK surgery.
  2. Operative Process: The process takes 1 hour for preparation and about 1 hour for the operation (Laser Treatment). The patient is required to rest at home for the rest of the day and meet the ophthalmologist the next day to take off the eye-shields
  3. Follow-Ups: You will be required to meet with your doctor for post-operation observation visits in the following intervals; 1 day, 1 week, 1 month, 3 months, 6 months, 1 year respectively as given to schedule. (Normally after 2-3 weeks, ophthalmologist would allow you to follow up with your own ophthalmologist)
  4. Recovery Time: 2 days (Operation day and next day to take off eye-shields) after your operation, you can begin normal activities Except: Exercise, Hard Work, and Heavy Lifting. Refrain from doing anything that may cause Sweating; Sweat may cause infection.

Note:

  1. The difference between PRK and Lasik is how to shape the cornea. Microkeratome is used to create a flap for lasik surgery.
  2. PRK is a proper procedure for only person whose cornea is not thick enough to create the flap for a LASIK surgery.
  3. The proper type for sightedness correction is advised by an ophthalmologist
    aftercomplete eye examination.

 

The Other Choices

Health Knowledge

In addition, there are the other ways to help you to see better besides laser. These are a wearing glasses and using contact-lens. Nevertheless, the best way is wearing glasses.

Effects

  1. There may be increased sensitivity to light, glare, and fluctuations in the sharpness of vision. There is an increased risk of eye irritation related to dry following the Lasik/ PRK procedure may require frequent application of artificial tears and/or closure of the tear duct openings in the eyelid.. Moreover, understand that these conditions usually occur as normal.
  2. Presbyopia could occur, is more likely in people over the age of 40 years and may require the use of glasses for reading or for distance vision some or all of the time.
  3. At night, there may be a “star bursting” or halo effect around light. Your vision may not seem as sharp at night as during the day and that you may need to wear glasses at night. One more important thing, you should not drive until your vision is adequate both during the day and at night.
  4. The temporary glasses either for distance or reading may be necessary while healing occurs and that more than pair of glasses may be needed.
  5. The long-term effects of Lasik/ PRK are unknown and that unforeseen complications or side effects could possibly occur. The visual acuity initially gain from Lasik/ PRK could regress, and that your vision may go partially back to a level that may require glasses or contact lens use to see clearly.

 

Before and After Care Procedures

Health Knowledge

Before Operation:

  1. Please call us if you are unable to come on time for an appointment
  2. Please report at our Lasik center 1 hour before operation time
  3. Please remove your contact lenses from your eyes (3 days before operation for soft contact lens and 7 days
    for hard contact lenses)
  4. You must present yourself neat & clean before surgery (take a bath, wash hair, no cosmetics/perfume, and no earrings) for uninterruptible laser performances.
  5. Wear a loose shirt so you can take off your shirt easily after operation. (It is very important to keep eyeshields
    untouched)
  6. Do not forget to bring someone with you (so someone can guide you home after operation)
  7. Make sure you eat only small meals (Don’t come with a full stomach)
  8. On the operation date, if you suffer from any kind of illness such as fever, cough, eye inflammation/irritation, etc. please notify us before operation.

During Operation:

Eye Laser Surgery

  • Please lie down and place your head on the blocked and look ahead on a green spot. Don’t move your eyes
  • Doctor will clean around your eyes with sterilize water
  • Doctor uses a machine to help you open your eyes wider. Then the nurse will take an eye drop for you and make a remark on your cornea’s surface.
  • Doctor uses a Microkeratome machine to divide the cornea layer. Then measure the eye pressure with Tonometer Machine. After divided the cornea layer, the green spot will disappear for a while. However you have to look at the same position and don’t move your eyes decisively. It takes about 10-15 second.

Eye Laser Surgery

  • After doctor divided your cornea layer, will sculp the cornea surface by using Eximer Laser. The laser process is various and depends on the different of the vision problem which normally takes less than 1 minute. Then the cornea layer will be removed and let its healing naturally.
  • The patient relax in the Recovery Room about 15 minutes for observation. Doctor will check your eyes again with slit lamp machine.
  • The nurse explains how to clean your eyes, take an eye drop, clean your eye shields, including take a medicine correctly.
  • In case there is something wrong with your eyes before an appointment date. Please don’t be hesitate to contact or come to see a doctor early.
  • Give the patient an appointment slip and their medicines before they get back home.
  • Call a wheel chair for patient for take him/her back or go to down stair or wherever he/she would like to drop. This is a rule of hospital for prevent an accident in advance.

The first night after operation:

  • If you feel sore or irritated after operation you will be require to take pain killer every 4-6 hours. You may the sensation of sand in your eyes, or have lots of tears, this is normal. It is necessary to have a good night’s sleep to reduce irritation. (You may take a sleeping pill).
  • Do not remove you eye-shields in any case until you meet the doctor again next day. (remember your eye-shields are to protect your eyes during sleep)
  • To wipe your tears (if you have any) use tissue paper only around eye shields.
  • Be aware of hair (especially, long hair) can harm your eyes. Use hair- clips as a precaution.

After Operation:

  1. Keep eyes fully rested for 24 hours after surgery such as, refrain from watching TV, reading, driving, using
    computer, etc. to avoid eye-irritation.
  2. Do not rub/touch your eyes and continue to use eyeshields while sleeping for 7 days.
  3. During the 7 days avoid the following unclean places such as dusty, smoky environment, and water.
  4. Wear a loose shirt for at least 7 days to keep your eyes undisturbed while changing, no cosmetics for at least 3 days, no swimming for 1 month and use glasses to protect your eyes from the sun & wind.
  5. 2 days after you operation, you can begin normal activities except exercise, hard work, and heavy lifting. Refrain from doing anything that may cause sweating; sweat may cause infection.
  6. Meet your doctor for post-operation observation 1 day, 1 week, 1 month, 3 months, 6 months, 1 year respectively as given schedule.

Do not let water touch the eyes:

  • Face cleaning: Use a soft soaked cloth to wipe your face without disturbing your eyes.
  • Eye cleaning: Close eyes and then use 2slightly soaked sterilized cottons to clean your eyelids and surrounding tissue.
  • Hair cleaning: Wash your hair softly and carefully with the help of someone else other than yourself, cover your eyes with eye shields or clean cloth while washing to avoid water contact.

Medicine:

  • Take pain killer tablets 2 every 4-6 hours
  • Take one sleeping pill before sleeping at night.

Take care of your eyes after the doctor removes your eye shields:

  1. Use normal saline solution or boiled water (bring it to room temperature), and clean around the operated eyes. 2 times a day (morning and evening), for 7 days. Make sure no water gets into the eyes.
  2. Use prescribed eye drops 4 times a day (morning, Lunch, evening and before sleep) or as your doctor recommends.

Remark:

  • The content herein is meant for educational purposes only, now that lasik treatments are currently unavailable at Bangkok Hospital Phuket.
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