Development and evaluation of the effectiveness of photodynamic therapy in inflammatory diseases of the ocular surface

Relevance. In the treatment of inflammatory diseases of the ocular surface, in order to achieve high efficiency in the shortest possible time, it is necessary for the therapy to be comprehensive. Today, in addition to traditional treatment methods, new technologies based on the use of low-energy lasers, which have high biological activity, are spreading. Aim. To improve the treatment results of the inflammatory diseases of the ocular surface by implementing photodynamic therapy (PDT) in experiment and clinic, using domestic equipment and elaborating optimal energetic parameters of laser irradiation. Methods. Objects of research: 130 nonlinear sexually mature rats weighing 150 grams contained in standard vivarium conditions and 110 eyes of patients with inflammatory eye diseases. Carrying out the investigation, experiments on animals, clinical and functional examination results of patients, and statistical analysis were taken into consideration. Results. A methodology for complex treatment of inflammatory diseases of the ocular surface was developed (with inclusion of PDT by the laser therapy device Vostok), based on experimental data and confirmed by clinical and functional ocular indices. PDT helps to increase the effectiveness of treatment, which is manifested by accelerated tissue regeneration, restoration of corneal transparency, increase of visual function in 86.7%, and reduction of treatment terms to 6 days. Conclusions. Anti-inflammatory and regenerative effectiveness of the proposed complex treatment of inflammatory diseases of the ocular surface with the PDT use was established: improvement in the clinical picture of conjunctivitis and keratitis was revealed, manifested by increase in corneal epithelization.