Avtor/Urednik		Kobilica, Nina
Naslov		Sprememba debeline in ukrivljenosti roženice po odstranitvi pterigija
Tip		monografija
Kraj izdaje		Ljubljana
Založnik		Univerza v Ljubljani, Medicinska fakulteta
Leto izdaje		2003
Obseg		str. 44
Jezik		slo
Abstrakt		BACKGROUND. Pterygium therapy includes different surgical techniques, sometimes in combination with a conservative therapy. Thining of cornea, which can be evaluated with different methods, is o8en found after the operative procedure. AIM. We wanted to determine the differences in corneal curvature and thickness after operative removal of pterygium. HYPOTHESES. As a background for our research we set following hypotheses: Patients have less symptoms ater pterygium surgery. Thickness of cornea decreases after surgery. Ultrasound and computerized (Orbscan II) pachymetry are comparable methods for measuring corneal thickness. Mean corneal power (Mean Pwr) increases after pterygium surgery. Astigmatic power (Astig Pwr) decreases after pterygium surgery. PATIENTS/METHODS. In our study we evaluated therapeutic efficacy of our surgical method (bare sclera technique). We compared the patient symptoms before and after the pterygium surgery. In addition a corneal curvature (Mean Pwr, Astig Pwr) was determined using computer corneal tophography (Orbscan II) before and after the surgical procedure. T'he corneal thickness was evaluated with ultrasound pachymetry and Orbscan II pachymetry. Forty-two patients entered the study. The clinical examination and the investigations were performed in 21 patients, which were included in the final analyses. RESULTS. Our results show that the pterygium symptoms markedly diminished after the surgery. The corneal curvature, as determined by Mean Pwr (p=0.07) and Astig Pwr (p=0.05) also increased. We were not able to demonstrate the reduction of the corneal thickness after the surgery. Our comparisons reveal similar results of postoperative ultrasound and computerized pachymetry measurements after the pterygium surgery (p=0.979). (Abstract truncated at 2000 characters)
Deskriptorji		PTERYGIUM CORNEA VISUAL ACUITY