[Experimental justification of the use of a polymeric implant in reconstructive and regenerative surgery of the sclera and tarsal plate].

Introduction: Congenital and acquired diseases, as well as traumatic injuries of the sclera and tarsal plate can lead to serious complications up to the complete loss of visual functions and loss of the eye as an organ if not treated timely. Due to that, it becomes necessary to use biological and synthetic materials during reconstructive and regenerative surgeries to replace the defects and reinforce the carcass properties of the sclera and tarsal plate.

Purpose: To compare experimental and morphological features of the response of the eye and surrounding tissues to implantation of the synthetic polymeric implant for reconstructive and regenerative surgery (PERRS) 'Reperen-6' and biological xenopericardium implant taken from cattle on the sclera in animal experiment.

[Ophthalmic manifestations of facial nerve palsy].

Facial nerve palsy is a common pathology that develops due to various diseases, traumas and medical interventions. The most common peripheral type of facial paralysis leads to acute unilateral involvement of facial muscles along with the development of paralytic lagophthalmos. The absence of adequate and timely medical treatment in patients with paralytic lagophthalmos can lead to severe corneal complications such as cornea perforation causing loss of eye and consequently restricted professional ability, work capacity and significant decrease of patient's life quality.

[Orbital case of ocular dirofilariasis].

Aim: to report a clinical case of orbital dirofilariasis with attention to peculiarities of disease presentation, diagnostic measures, and treatment results.

Material And Methods: A patient with a history of spontaneously subsiding recurrent oedema of the lower eyelid suspicious of parasitic cyst formation. The diagnosis was confirmed preoperatively by orbital ultrasound.

[Staged complex treatment of paralytic lagophthalmos (case report)].

Paralytic lagophthalmos, resulting from facial nerve palsy, is a difficult medical and social issue that requires cooperation of different specialists. Complications that arise in paralytic lagophthalmos may cause significant vision loss and even eye loss. Various techniques of paralytic lagophthalmos correction are used to protect the cornea and restore eyelid anatomy and functions.