The Method Of Femtosecond Aspiration And Exchange Of A Clear Lens In Patients With Presbyopia And Ametropia Without Ultrasound Energy

In that work demonstrates the high efficacy, safety and predictability of femtosecond laser lens surgery without ultrasound in patients with refractive errors. The fundamental ability to create a method, directed for correction refractive errors with minimizing the traumatic effect on the surrounding tissues is shown.

The safety and efficacy of switching from ultrasound lens surgery to low-pressure aspiration in presbyopic patients was confirmed by posterior segment OCT, corneal confocal microscopy, irrigation fluid volume, and aspirate volume.

The presented surgical style allow preservation the volume of viscoelastic in the anterior chamber at all stages of the operation.

A personalized access was used to femtofragmentation of the lens nucleolus based on the results of measuring the size and density.

In all cases where used the original method of prevention of intraoperative miosis, good pupil dilation was observed during the operation.

Are presented early postoperative, intermediate and 6-month observational data.

Were examined and operated to this technique of lens refractive surgery 20 patients with different forms and degrees of refractive deviations.  Are studied of pre- and postoperative morphological properties of eye tissues, lens densitometry, analysis and selection of optimal patterns of femtolaser fragmentation of the lens nucleus. Was confirmed the effectiveness of the original method of preventing intraoperative miosis.

The method allows to estimate the early postoperative results of the functional condition of the eye, the degree of induced astigmatism, to conduct a comparative analysis of the data obtained on the morphofunctional state of tissues in the early and late postoperative period during standard phacoemulsification and low-pressure femtolaser lens surgery without the use of ultrasound.