4. An orthoptist may perform, under the conditions provided in this Regulation, the following professional activities:(1) observing and describing the general aspect of the eyes and accessory parts in relation to strabismus;
(2) evaluating visual acuity and type of fixation including ophthalmoscopic method;
(3) neutralizing prescription glasses;
(4) evaluating oculomotor balance and binocular vision by:(a) examination by cover test;
(b) evaluating oculomotor balance, ductions, versions and vergences;
(c) evaluating accommodative convergence relations on accommodation;
(d) making pre- and post-operative evaluations of ocular motility and the condition of binocular vision;
(e) evaluating stereoscopic vision;
(f) evaluating diplopia;
(g) using prisms or additional removable lenses;
(h) observing and describing ocular torticolis;
(i) evaluating neutralization;
(j) evaluating retinal correspondence;
(k) looking for basic deviation;
(5) performing Hess test and its derivatives;
(6) evaluating visual field;
(7) treating amblyopia through:(a) occlusion;
(b) penalization;
(c) active or passive methods to overcome amblyopia;
(d) home exercise program;
(8) treating the sensory element through:(a) home exercise program;
(b) proven methods according to medical science data aimed at:i. improving accomodative convergence;
ii. increasing vergence amplitude;
iii. eliminating pathological neutralization through occlusion of any other active exercise;
(9) applying drops or ointments for therapeutic purposes;
(10) instilling drops for diagnostic tests;
(11) performing electrooculography and electronystagmography;
(12) performing biometrics and doing calculations for intraocular lenses;
(13) performing ocular photography;
(14) performing refraction;
(15) testing visual aids and ensuring follow-up for rehabilitation of low vision.