• 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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Sub-Bowman’s Keratomileusis (SBK)

Welcome to the Center for Information of sub-Bowman’s Keratomileusis prodeures!

Below is the basic knowledge of sub-Bowman’s Keratomileusis, you can click on the topic to read more.

About Sub-Bowman’s Keratomileusis (SBK)


What is SBK?

Health Knowledge

sub-Bowman’s Keratomileusis or SBK is the latest technology in Lasik surgery that corrects nearsightedness, farsightedness, and astigmatism. It is a new more precise procedure that is a new standard in laser surgery. It utilizes a special Microkeratome to create a thin corneal flap of shorter length into the Sub-Bowman’s membrane, preserving the structural integrity of the eye while molding the cornea into a preferred shape. Advantages include:

  • The Corneal shape and strength remains the same as before surgery in comparison to previously done methods.
  • Be able to treat patients with high degrees of nearsightedness
  • SBK is proper to use in treating patients with thin corneas
  • Result to fewer cases of dry eyes – a side effect most associated with Lasik surgery
  • Shorter operation time and more convenient for the patient than Lasik surgery
  • Shorter period of recovery after surgery with eyesight completely clear and stable

There are 2 types of SBK : OUP SBK and Femto SBK. Reports from Clinical data collected from 2 groups of patients revealed that there are no significant differences in the outcome of treatments between the two types of SBK procedures. There is however, a faster recovery rate, lesser pain 1 day post-op and cost effectiveness with OUP SBK technique. ----->

SBK (Sub-Bowman’s Keratomileusis)


Alternative treatments

Health Knowledge
  • Wearing of corrective eyeglasses
  • Wearing of contact lenses
  • Phakic IOL


Risks and adverse events

Health Knowledge
  • May have dry eyes problem after operation


Before surgery

Health Knowledge
  • Please call staff ahead of time, if you are unable to come for the appointment.
  • Go to the LASIK-CENTER one hour before the appointed operation time.
  • Do not wear contact lenses days before the operations as follows: 3 days before surgery for soft contact-lenses and 7 days for hard contact-lenses.
  • Hygiene is important to prevent infection. It is advisable for patients to take a good bath and shampoo hair
    thoroughly. Do not wear make-up, perfume or earrings.
  • Wear loose clothing like a button down shirt, for easy removal. It is very important to keep eye shield untouched during changes of clothing after the operation.
  • Please bring a companion/or relative to drive you home after the surgery.
  • Do not come to the operation with a full stomach. Eat a light meal and eat some snacks or drink water when needed.
  • Notify staff before the operation if you are feeling ill like having a fever, cough, eye infection or irritation.


After Operation

Health Knowledge
  • Ensure that you will have a good night’s sleep after the operation. Take analgesics every 4-6 hours for pain or
    soreness, or take a sleeping pill. It is normal for patients to feel sandy sensations in the eyes or excessive tearing.
  • Wear the eye-shields at all times during sleep. It protects the eyes to unconscious rubbing while patients are in deep sleep. Open the eye-shields only during application of eye drops.
  • Wipe tears using clean tissue paper around the eye shields. Do not dab the tissue directly into the eyes.
  • Keep hair away from the eyes by using a hairclip or tying hair into a knot.
  • Keep eyes fully rested for 24 hours after surgery. Refrain from watching TV, reading, driving, using computer, etc. to avoid irritation of the eyes.
  • For 2 days after the operation: you can begin normal activities except exercise, hard work, heavy lifting. Refrain from doing anything that may cause sweating. Sweat can flow into the eyes and cause infection.
  • For 3 days after the operation: Do not wear make-up or cosmetics.
  • For one week after the operation:
    • Do not rub/touch your eyes. Cover eyes with the eye-shields always.
    • Avoid unclean places such as dusty, smoky environment, or windy places, swimming pool.
    • Wear loose clothing to keep your eyes undisturbed while changing
  • Do not swim for one month. Wear sunglasses to protect eyes from sun and wind.
  • Meet your doctor for follow-up appointments regularly after the operation, as scheduled e.g. 1day, 1 week ,1 month, 3 months, 6 months, and in 1 year.



Health Knowledge
  • Take analgesics, 2 tablets every 4-6 hours for pain or soreness.
  • Take one sleeping pill before sleeping at night.


Caring for your eyes after removal of eye shields

Health Knowledge
  • Use normal saline solution or water that has already been boiled and cooled to room temperature, in cleaning the area around the eyes. Make sure no water gets into the eyes. Do this two times a day, morning and evening.
  • Apply the eyes drops as per doctor’s prescription, usually applied 4 times per day: morning, noon, evening and
    before sleep.


How to clean your face and shampoo your hair after surgery?

Health Knowledge
  • Face cleaning : Do not wash or pour water into your face. Use a soft clean face towel soaked in water to wipe face without disturbing the eyes.
  • Eye cleaning : Close eyes and then use slightly soaked sterilized cotton balls, to clean your eyelids and surrounding areas.
  • Hair cleaning : Request a friend/relative to shampoo hair gently and carefully, to avoid eyes getting into your eyes. Cover eyes with eye-shields or clean cloth while washing to avoid water contact.


  • This information should not be used as a substitute to consultation from a physician. Always talk with your doctor about diagnosis and treatment information.
  • The service center is Eye Center of Bangkok Hospital Phuket.
  • For more information about our medical services! Please contact us at info@phukethospital.com
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