Posters

Effect and adverse events of orthokeratology lenses for myopia control in myopic Scandinavian children. A randomised controlled clinical trial

Poster Details

First Author: T.Jakobsen DENMARK

Co Author(s):    F. Møller                    

Abstract Details

Purpose:

To examine myopia control efficacy and adverse events of orthokeratology lenses (OKLs) in ethnically, Scandinavian children aged 6 to 12 years with myopia between 0.5 and 4.75 dioptres (D) spherical and astigmatism ≤ 2.5 D.

Setting:

Ophthalmic department, Lillebaelt Hospital, University Hospital of Southern Denmark.

Methods:

Randomised controlled clinical trial, 12-month follow-up. The intervention group (OKL group) received Dreamlite® (Procornea, LZ Eerbeek, the The Netherlands) OKLs fitted based on corneal topography analysis (Pentacam HR, Oculus, Wetzlar, Germany). The control group (SVS group) received single-vision spectacles (SVSs). Axial length (AL) was measured using Lenstar LS900 (Haag-Streit, Koeniz, Switzerland) and adverse events were objectified using Efron Grading Scale for Contact Lens Complications (Efron score).

Results:

Of the 60 subjects included 20 and 28 subjects from the OKL and SVS groups, respectively, completed the 12-month follow-up. AL growth from BL to 12-month of the right eye was 0.11 ± 0.16 mm and 0.29 ± 0.16 mm in the OKL and SVS groups, respectively. The difference was statistically significant (P-value < 0.001, unpaired t-test). There were no severe or treatment requiring adverse events during the follow-up period.

Conclusions:

OKLs significantly reduce axial length elongation in Scandinavian myopic children. There were no adverse events requiring treatment or causing visual impairment.

Financial Disclosure:

None