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Comparison of dry eye symptoms and patient satisfaction in femtosecond laser in situ keratomileusis (FS-LASIK) and small incision lenticule extraction (SMILE)

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Session Details

Session Title: Small Lenticule Extraction

Session Date/Time: Sunday 08/10/2017 | 11:00-12:30

Paper Time: 11:24

Venue: Room 3.6

First Author: : J.Pietilä FINLAND

Co Author(s): :    A. Huhtala   P. Makinen   T. Rajala   K. Salmenhaara   V. Alho   H. Uusitalo     

Abstract Details

Purpose:

To compare dry eye symptoms and patient satisfaction in subjects who underwent femtosecond (FS) LASIK for myopia or hyperopia, or SMILE for myopia.

Setting:

Silmäasema Eye Hospitals in Tampere and Helsinki (Finland).

Methods:

This prospective, nonrandomized comparative study involved 400 eyes (206 patients). The SMILE and FS-LASIK for hyperopia groups included 100 eyes, and the FS-LASIK for myopia group 200 eyes. In FS-LASIK, the FEMTO LDV Z6 I femtosecond laser was used for flap creation and the Wavelight EX500 excimer laser for stromal treatment. In SMILE procedure, the Visumax femtosecond laser was used. In the subjective questionnaire, the sensation of dry eye was graded from 0 (no dryness) to 10 (extremely dry eyes), and patient satisfaction with far and near sight from 0% (poor) to 100% (excellent). Follow-up time was one month.

Results:

The sensation of dry eye increased significantly in the FS-LASIK for myopia group, but not in the hyperopia group. In the SMILE group, the sensation of dry eye decreased significantly compared to the preoperative value. The postoperative mean score for patient satisfaction with far sight was in the similar range for all study groups. Patient satisfaction with far sight improved significantly in all groups. The mean score for patient satisfaction with near sight improved significantly in the FS-LASIK-treated eyes, but in the SMILE-treated patients, there was no significant change in the patient satisfaction with near sight.

Conclusions:

Subjective dry eye symptoms increased in one month, compared to the preoperative situation, in the FS-LASIK-treated eyes, but not in the SMILE-treated eyes. Patient satisfaction with far sight improved significantly in all the groups studied. Patient satisfaction with near sight improved only in the FS-LASIK-treated eyes. Our study support recent meta-analyses indicating that FS-LASIK-treated myopic eyes suffer more severely from dry eye symptoms than SMILE-treated eyes.

Financial Disclosure:

gains financially from product or procedure presented

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