[Investigation of the impact of pterygium on ocular optic system aberration. Communication 2. New approaches to reducing aberrations during surgical treatment for pterygium].

The authors made a detailed comparative analysis of the aberration pattern of the cornea as a result of surgical treatment for pterygium, by applying various technologies. Forty-four patients (55 eyes) with primary Stages II to IV pterygium were examined. According to the surgical techniques, the patients were divided into 2 groups: (1) those in whom pterygium was surgically removed, followed by abrasive microsurgery and plastic repair with an autoconjunctiva (29 eyes) (a control group); (2) those who had undergone surgical pterygium removal, abrasive microsurgery, and plastic repair with an autoconjunctiva, followed by phototherapeutic eximer laser keratoablation (26 eyes). The study has revealed that phototherapeutic eximer laser ablation of the cornea after surgical excision and abrasive treatment of the corneal bed in Stages II to IV pterygium causes a considerable reduction in the level of aberrations of higher orders. The expedience of phototherapeutic keratoablation as part of multimodality treatment for Stages III and IV pterygium, which has been shown by the aberration analysis, is only one of the first steps in evaluating the efficiency of this technology of surgical treatment for pterygium. Studies involving an integrated clinicofunctional and ophthalmoergonomic assessment of this treatment technology should be continued, which makes it possible to evaluate the clinical efficiency of this procedure and to define a place of the presented technology in the surgical treatment of pterygium.