Refractive Corneal SurgeryDr. Choong Yean Yaw
Cornea and Refractive Surgeon
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Lasik
Elective operation, reserved for patients who want to reduce or eliminate a dependence on eyeglasses or contact lenses
More than 50 millions procedure performed
As with any surgery, LASIK has potential risks, complications and side effects
Less than 1%
well trained surgeon
reliable equipment
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Satisfaction after laser refractive surgery?
K. Soloman et al. LASIK World Literature Review - Quality of Life and Patient Satisfaction. Ophthalmology Volume 116, Issue 4, Pages 691–701, April 2009
 309 database articles
An average 95.4% of patients were satisfied with their outcome
One of the most successful elective surgeries
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EXCIMER LASER
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other environmental factors
Reduction in side effects
Digestion of data from numerous scientific papers
Improved treatment profile
Treatment to improve patients suffered side effects from previous surgery
Femtosecond laser
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Mitomycin C
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Additional Step of Flap Creation
Additional Step of Flap Repositioning
Potential Posterior Segment Complications
Femtosecond-only laser vision correction
Potentially changing the way how refractive surgery is performed now
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Relex Smile
Painless
1. Di Wu et al.Corneal biomechanical effects: Small incision lenticule extraction versus femtosecond laser-assisted laser in situ keratomileusis. J Cataract Refract Surg 2014; 40:954-962.
2.Abhijit Sinha Roy et al. comparison of biomechanical effects of small incision lenticule extraction laser-assisted laser in situ keratomileusis. Finite element analysis. J Cataract Refract Surg 2014; 40:971-980.
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Studies showed comparable results to Excimer laser1-4
FDA clinical trial completed in June 2014, expected approval in 2016
Kazutaka Kamiya et.al. Early clinical outcomes, including efficacy and endothelial cell loss, of refractive lenticule extraction using a 500 kHz femtosecond laser to correct myopia. Journal of Cataract & Refractive Surgery, Volume 38, Issue 11, November 2012, Pages 1996-2002
Rupal Shah et.al. Results of small incision lenticule extraction: All-in-one femtosecond laser refractive surgery. J Cataract Refract Surg 2011; 37:127–137
Anders H. et.at. Efficacy, safety, predictability, contrast sensitivity, and aberrations after femtosecond laser lenticule extraction. J Cataract & Refract Surg, Volume 40, Issue 3, March 2014, Pages 403-411
Marcus Blum et.al. Five-year results of refractive lenticule extraction. J Cataract & Refract Surg, Volume 40, Issue 9, September 2014, Pages 1425-1429
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motivated to improve his or her
uncorrected vision
long sightedness up to +5.00 D
Astigmatism up to 5.00 D
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Be at least 18 years of age
Have had stable vision for at least one year (stable refractive prescription of + 0.5 Diopter)
Healthy cornea
Good general health
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Looks confidence in front of the mirror without optical aids
No more hassle of cleaning up contact lenses
No more misty vision when
taking hot meal
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any disaster scenarios
Side effects or complications are minimal with well trained surgeon
Exciting technology (Relax Smile) is NOW available!
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It improves the function of the eye
It can be life changing
Continuous improvements in laser technology and surgical techniques have made LASIK safer and more effective year after year
There are now new and better treatment options for many of the non-permanent side effects
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Thank you