The effect of low-concentration atropine combined with auricular acupoint stimulation in myopia control

SummaryObjectivesTo compare the effect of myopia control between patients treated with low-concentration atropine eye drops combined with auricular acupoint stimulation and those treated with atropine alone.Design and settingsSingle-blinded randomized controlled clinical trial in a regional teaching hospital.InterventionsThe patients received either topical 0.125% atropine nightly plus auricular acupoint stimulation (0.125A + ACU group) or topical 0.125% atropine alone nightly (0.125A group).Main outcome measuresThe changes in spherical equivalent (SE), axial length (AL), anterior chamber depth (ACD), and intraocular pressure (IOP) per year were compared between the two groups.ResultsSeventy-three of 110 total patients (66.4%) completed at least 6 months of follow-up. Patients in the 0.125A + ACU group had less myopic progression and AL elongation (−0.41 diopter and 0.24 mm/year) than those in the 0.125A group (−0.66 diopter and 0.32 mm/year) (mean follow-up 14.7 months, p < 0.0001 and p = 0.02, respectively). The ACD increased more in the 0.125A + ACU group than in the 0.125A group (0.076 mm vs. 0.023 mm/year, p = 0.0004). IOP decreased more in the 0.125A + ACU group than in the 0.125A group (−1.01 mmHg vs. −0.13 mmHg/year, p = 0.007). A decrease of 1 mmHg of IOP correlated with a decrease of myopic progression of 0.021 diopter/year (p = 0.006).ConclusionsPatients treated with 0.125% atropine eye drops plus auricular acupoint stimulation had less myopic progression, less axial length elongation, more anterior chamber deepening, and greater IOP reductions than those treated with 0.125% atropine alone. Auricular acupoint stimulation in combination with low-concentration topical atropine was beneficial for myopia control.