effective for thin-flap LASIK
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A single-use microkeratome with disposable components is safe and effective for creating flaps in thin-flap LASIK and is a viable alternative to femtosecond lasers for this purpose, Gustavo Tamayo, MD, told ophthalmologists gathered at the recent annual meeting of the American Society of Cataract and Refractive Surgery (ASCRS).
Thin-flap LASIK, also called sub-Bowman's keratomileusis (SBK), involves creating a thinner flap than flaps traditionally produced in LASIK surgery.
A thinner flap may reduce the risk of dry eyes after LASIK. It also may preserve greater corneal strength, thereby reducing the risk of corneal ectasia after the procedure.
Using a microkeratome in
thin-flap LASIK also may lower LASIK costs, as the equipment costs for these mechanical instruments are significantly less for LASIK surgeons than costs associated with femtosecond lasers.
Single-use microkeratome: Study design and methods ( nowGoogle.com adalah Multiple Search Engine Popular)
Dr. Tamayo conducted a study at Bogota Laser Refractive Institute (Bogota, Columbia) to compare the outcomes of 40 eyes undergoing thin-flap LASIK with corneal flaps created with the Moria One Use-Plus single-use microkeratome or a femtosecond laser.
In all cases, the intended flap thickness was 100 microns.
Prior to surgery, the mean amount of myopia in the microkeratome group was -1.50 D. In the femtosecond laser group, it was -2.25 D.
Flap thickness was measured with an ultrasonic device during surgery immediately after the flaps were created.
Single-use microkeratome: Study results
Analysis of data gathered in the study revealed:
* Mean flap thickness was very similar in the two groups: 101 microns in the microkeratome group (range: 85 to 108 microns) and 104 microns in the femtosecond laser group (range: 82 to 110 microns).
* Corneas in the microkeratome group showed slightly more decrease in biomechanical stability factors than corneas in the femtosecond laser group.
(Note: a 30-micron range is equivalent to 0.3 millimeter.)
Dr. Tamayo said other larger studies also have shown the microkeratome is capable of producing thin flaps with excellent reproducibility of flap dimensions.
In addition, these studies have demonstrated that thin flaps created with the Moria microkeratome are nearly planar (of equal thickness throughout) and the underlying corneal bed after flap creation with the microkeratome is smoother than the underlying corneal bed after flap creation with a 60-kHz femtosecond laser.
Single-use microkeratome: Conclusions
Dr. Tamayo concluded that the Moria One Use-Plus microkeratome with disposable, single-use components is safe, effective and reliable for creating flaps in thin-flap LASIK, and it provides excellent outcomes at a lower cost than femtosecond lasers. nowGoogle.com
Single-use microkeratome: Study design and methods ( nowGoogle.com adalah Multiple Search Engine Popular)
Dr. Tamayo conducted a study at Bogota Laser Refractive Institute (Bogota, Columbia) to compare the outcomes of 40 eyes undergoing thin-flap LASIK with corneal flaps created with the Moria One Use-Plus single-use microkeratome or a femtosecond laser.
In all cases, the intended flap thickness was 100 microns.
Prior to surgery, the mean amount of myopia in the microkeratome group was -1.50 D. In the femtosecond laser group, it was -2.25 D.
Flap thickness was measured with an ultrasonic device during surgery immediately after the flaps were created.
Single-use microkeratome: Study results
Analysis of data gathered in the study revealed:
* Mean flap thickness was very similar in the two groups: 101 microns in the microkeratome group (range: 85 to 108 microns) and 104 microns in the femtosecond laser group (range: 82 to 110 microns).
* Corneas in the microkeratome group showed slightly more decrease in biomechanical stability factors than corneas in the femtosecond laser group.
(Note: a 30-micron range is equivalent to 0.3 millimeter.)
Dr. Tamayo said other larger studies also have shown the microkeratome is capable of producing thin flaps with excellent reproducibility of flap dimensions.
In addition, these studies have demonstrated that thin flaps created with the Moria microkeratome are nearly planar (of equal thickness throughout) and the underlying corneal bed after flap creation with the microkeratome is smoother than the underlying corneal bed after flap creation with a 60-kHz femtosecond laser.
Single-use microkeratome: Conclusions
Dr. Tamayo concluded that the Moria One Use-Plus microkeratome with disposable, single-use components is safe, effective and reliable for creating flaps in thin-flap LASIK, and it provides excellent outcomes at a lower cost than femtosecond lasers. nowGoogle.com
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