METHOD OF MODELING SURGICAL TREATMENT OF HORIZONTAL CONCOMITANT STRABISMUS Russian patent published in 2023 - IPC A61F9/00 A61F9/07 

FIELD: medicine; ophthalmology.

SUBSTANCE: individual anthropometric parameters of the eyes are determined, including the objective angle of strabismus, which is determined by a synoptophore in degrees or prism diopters, the length of the anterior-posterior axis of the eye and the transverse size of the eye are determined in mm by ultrasound echobiometry. The interpupillary distance is determined in mm, the static refraction of the eye is determined by autorefractokeratometry, the refractive power of the cornea in the weak and strong meridians and the power of the spherical equivalent in diopters in conditions of complete drug cycloplegia, the diameter of the cornea is determined in mm using an autorefractometer, as the distance from the limbus at 9 o'clock position to the opposite one limb at 3 o'clock position along the horizontal meridian. Based on the identified individual parameters of the eyes, the amount of strengthening of the muscle on the side opposite to the deviation and the amount of weakening of the muscle on the side of the deviation of the operated eye are calculated in the computer program “Strabo soft”, and if the value of the strengthening operation is more than 6 mm, an additional weakening operation of the direct line is performed horizontal muscle on the side of deviation of the operated eye. The calculation is made from the limbus, and the measurement is carried out from the original site of attachment of the lateral rectus muscle, noting the position of the posterior dosing limit according to the planned volume; in case of recession, the calculation is made from the limbus. In a particular case, the corneal diameter, in mm, and the position of the posterior dosing limit from the original insertion of the lateral rectus muscle are marked with a caliper. The interpupillary distance in mm is determined using a measuring ruler or a pupillometer.

EFFECT: method makes it possible to distribute the operation model to both eyes with a high cosmetic and functional result, the dosed surgical intervention required for the patient, the number of stages of the operation and their sequence.

3 cl, 9 dwg