PMID: 18201522Jan 19, 2008Paper

Study on microsurgical procedures for pterygium operation and its therapeutic effects

[Zhonghua yan ke za zhi] Chinese journal of ophthalmology
Qiu-Yun FangZhen-Qian Chen

Abstract

To study the microsurgical procedures for the treatment of large primary pterygium and their therapeutic effects. To observe the recurrence rate, the changes of visual acuity after microsurgery and the pathological relationships between pterygium and cornea/sclera under the surgical microscope. Forty-six eyes of forty-one patients with pterygium which invading the cornea over the pupil border were included. Pterygium was dissected by various methods under surgical microscope. The pathological relationship between the pterygium and cornea/sclera was observed. The lengths of the pterygium head and its three parts were measured. Degenerative Tenon's capsule was removed totally and the wound was covered by rotated conjunctival flaps. These patients were followed-up for 12.0 - 50.2 months (median: 22.4 months). Changes in visual acuity and recurrence rate after operation were observed. The average length of the total pterygium heads was (6.3 +/- 0.4) mm. The head was divided into three parts: the apical, loose and adhesive parts. The apical part was located at the top of the pterygium head with a length of (1.7 +/- 0.4) mm. The tissue of apical part was compact, hard, translucent and adhered to the cornea tissue. The adhesive part w...Continue Reading

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