The Effects of Beta Ray Irradiation (Strontium 90) after Pterygium Operation.

Chun, Chong Han; Oh, Bum Hi; Yoo, De Woo; Choe, Chang De

Original Article

Journal of the Korean Ophthalmological Society 1966;7(2):77-82.

The Effects of Beta Ray Irradiation (Strontium 90) after Pterygium Operation.

Chong Han Chun, Bum Hi Oh, De Woo Yoo, Chang De Choe

Department of Ophthalmology, School of Medicine, Kyungpook National University, Taegu, Korea.

익상편수술후의 (翼狀片手術後) ( Beta ) 선 (線) ( Sr90 ) 조사성적에 (照射成績) 대하여 (對)

김정우(Jung Woo Kim),전충한(Choong Han Jeon),오범희(Bum Hee Oh),유대우(Dae Woo Yoo),최창대(Chang Dae Choi)

Abstract

One hundred and eight cases who had Sr(90) irradiation in preventing pterygium recurrence were studied. The average follow up period in this series was more than one year and maximum of 3 years. The following results were obtained. 1. Three pterygium recurrences out of 11 cases (27.3%) were found in group of 1200 rads and one out of 9 (11%) in 1800 rads group. These recurrent cases did not have enough amount of irradition due to patient's conditions. No pterygium recurrences were observed in 88 cases of 2400, 3000, 3600, and 4200 rads groups. We think that the amount of post irradiation for prevnting recurrence is more than 2400 rads. Subacute reaction of post irradiation occurred in 3000, 3600, and 4200 rads groups; 7 cases out of 76 cases (9.2%). Our cases have not been followed long enough to rule out late complications, especially radiation cataract and telangiectasis of conjunctival vessels. No late complications, however, have been found up to three years after Sr(90) irradiatron. 3. Post irradiative medication of hydrocortisone eye drops (0.5% qid) was continued from immediately after irradiation to 3 days after last irradiation. The application of hydrocortisone eye drops seems to decrease the rate, mitigate the symptoms, and shorten the duration of treatment of transient and subacute reactions.