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Evaluation of two different cap thickness outcomes 1 year after refraxtive lenticule extraction (ReLEx) Smile compared to femto-LASIK

Poster Details

First Author: D.Breyer GERMANY

Co Author(s):    H. Kaymak   K. Klabe   C. Pohl        

Abstract Details

Purpose:

Small incision lenticule extraction (SMILE, VisuMax, Carl Zeiss Meditec) treatment represents an alternative technique to treat myopic & astigmatic patients. Former studies showed comparable visual recovery as well as visual and aberrometric results compared to the Femto-LASIK technique. This study adresses the question, whether a residual cap of 140µm produces visual otucomes as predictable, safe and effective as 130µm caps compared to 100µm flaps.

Setting:

Breyer Kaymak Klabe Surgery Berliner Allee 15 40212 Duesseldorf Germany

Methods:

The current investigation presents comparative results of 50 eyes in each SMILE group compared to 50 eyes in the FemtoLASIK group. Follow up was performed between 1 day and up to 12 month after tretment. Results were evaluated by wave front analysis and subjective refraction. Patients were questioned for dry eye symptoms, comfort and recovery.

Results:

Concerning safety and efficiency of each method we could not detect significant differences. All three laser treatments, both SMILE groups and the Femto-Lasik group represented state-of-the-art status of both parameters. All groups showed a remarkable mean UDVA of < 0.05 logMAR one year after treatment. Visual recovery was in the SMILE groups was as fast as with the Flap-based LASIK. Less dry eyes as well as better patient comfort and less pain sensation were observed in the SMILE groups.

Conclusions:

Visual recovery, safety, effectiveness and predictability shows similar results in all 3 groups, while deficits in comfort were greater in the Femto LASIK group. No dry eye sensations were observed in the SMILE group. The tissue removal in deeper corneal layers and a small incision of only 2-3mm may result in more stable corneas after SMILE surgery. Therefore we clearly favour the SMILE technique in any aspects compared to the traditional FLAP-based LASIK.

Financial Disclosure:

One or more of the authors travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented

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