Posters

Efficacy and safety of small incision lenticule extraction (SMILE): a retrospective quality control study from a university hospital clinic

Poster Details

First Author: A.Vestergaard DENMARK

Co Author(s):                        

Abstract Details

Purpose:

To evaluate the safety and efficacy of the SMILE procedure for treatment of moderate to high de-grees of myopia and low to moderate degrees of astigmatism.

Setting:

Department of Ophthalmology, Odense University Hospital, Denmark

Methods:

A retrospective quality control study of all patients treated with SMILE in one or both eyes in the period from January 2017 to December 2018, at the Department of Ophthalmology, Odense University Hospital. All patients were eye healthy except stable myopia and astigmatism. Lenticule diameter was 6.6 mm and cap thickness was 125 µm. Maximum spherical correction was -10 D, and maximal astigmatism correction was -4.5 D. Clinical examinations were performed preoperatively and at day 1, 1 week and 3 months after surgery. A total of 529 eyes were analyzed.

Results:

Preoperative spherical equivalent (SE) refraction averaged -6.94 D (range -1.00 to -16.50 D). After 1 day and 3 months,58% and 79%, respectively, had an UDVA ≤ 0,1 (logMAR). Three months after surgery, the mean difference in attempted vs. achieved SE refraction was -0.02±0.49 D, and 95% of eyes were within ±1.0 D of the intended correction, and 78 % were within ±0.50 D of the intended correction. A total of 3 eyes lost 2 lines of CDVA, and was related to dryness. All 3 patients dropped from CDVA of -0.2 to 0.0(logMAR), but they were all happy with the results.

Conclusions:

In this retrospective real-life evaluation study, we found that SMILE was a safe and efficient procedure for treatment of all degrees of myopia and myopic astigmatism. Refractive precision was high, and the main reason for impaired postoperative vision was related to corneal dryness.

Financial Disclosure:

None