FIELD: medicine.
SUBSTANCE: invention relates to ophthalmology. Clinical refraction value is determined with underlying drug-induced cycloplegia before and after the operation; the surgical treatment scope is determined when performing Femto LASIK in the form of laser correction value and assessment of achieving target refraction after operation as difference between values of clinical refraction with underlying drug-induced cycloplegia before operation and change of keratometry before and after operation Femto LASIK. Laser correction value is determined by the original formula, where F sph is the laser correction value (dioptre), Rf sph is the value of clinical refraction with underlying drug-induced cycloplegia (dioptre), and when evaluating the achievement of the target refraction after the operation as the difference between the values of the clinical refraction with underlying drug-induced cycloplegia before the operation and change of keratometry before and after operation Femto LASIK result from 0 to 0.5 dioptres is considered to achieve target refraction in postoperative period. In a particular case, if the patients with hypermetropia have a weak or medium degree of astigmatic refraction component of up to 1.0 dioptres, the value of laser correction of hyperopic astigmatism is also determined when performing Femto LASIK according to the original formula, where F cyl is the value of laser correction of hypermetropic astigmatism (dioptre), Rf cyl is the value of hypermetropic astigmatism with underlying drug-induced cycloplegia (dioptre), and when obtaining during the assessment of the achievement of the target refraction after the operation as the difference between the values of the clinical refraction with underlying drug-induced cycloplegia before the operation and the change in keratometry before the operation and after operation Femto LASIK result from 0 to 0.5 dioptres is considered to be achievement of target refraction in postoperative period.
EFFECT: method enables to accurately predict the target refraction when performing the Femto LASIK operation in the patients with mild or moderate hypermetropia and taking into account the presence of an astigmatic component of refraction.
2 cl, 1 ex
