Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance
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10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits

 

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Electrostimulation of the ciliary muscle: a new non-invasive treatment to restore accommodation in patients affected by early presbyopia

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Session Details

Session Title: Presented Poster Session: Presbyopia

Session Date/Time: Tuesday 13/09/2016 | 09:30-11:00

Paper Time: 10:30

Venue: Poster Village: Pod 2

First Author: : L.Gualdi ITALY

Co Author(s): :    V. Cappello   F. Gualdi   T. Fintina   F. Bilancia   R. D'Abruzzo   M. Gualdi

Abstract Details

Purpose:

To evaluate the preliminary results of a new non-invasive method to reactivate the accommodation based on a passive electrostimulation of the ciliary muscles

Setting:

D.O.M.A. (Diagnostica Oftalmologica Microchirurgia Ambulatoriale), Rome, Italy

Methods:

39 emmetropic and early presbyopic patients (mean age=48.2) were treated in topical anaesthesia (Oxybuprocaine 0,4%) by a low voltage micro-electrostimulation of the ciliary muscles. A 8-minute continuous 1-200Hz treatment was performed on each eye by a generator connected to a cable and a 20mm contact lens in polycarbonate internally containing 4micro-electrodes located at 3.5mm distance from the limbus. The Electrostimulator erogates square wave bifasic compensed micro-continuous current. Every treatment was performed 4 times in 2 months. Pre and post-operative subjective and objective tests were taken at identical light conditions and clock-time of the journey every 15 days for 9 months.

Results:

Subjective results were statistically significative improved after the second treatment (p<0.05) by: Uncorrected reading speed time= -8sec/min, Uncorrected near vision (40cm)= -0.10 LogMar and Uncorrected intermediate vision (70cm)= -0.12 LogMar. Objective results by U.B.M. taken under accommodation and compared with the pre-op, showed an average increased antero-posterior diameter of the crystalline lens=+0.12 and a reduction of its anterior=-0.24 mm and posterior ray=-0.08mm of curvature. The internal aberrometry under accommodation also showed a negativization of LSA.=-0.4 micron when compared before the cycle of 4 treatments. After 6 to 9 months from the last treatment, almost all of the patients reported a complete regression of the effect.

Conclusions:

Electrostimulation of the cyliary muscle is a promising non-ivasive treatment to restore accommodation in emmetropic patients affected by early presbyopia. The main advantage is to gain uncorrected visual acuity without loosing nor quantity nor quality of far vision and without any side effects if compared with any surgical technique. The disadvantage is that after the activaion cycle, the patient should repeat a single treatment almost every 3 months to maintain the acquired effect. More data and follow-up will be helpful to create new programs or contact lens to increase these effects.

Financial Disclosure:

NONE

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