Rajshree Medical Research Institute and Hospital, Bareilly (UP), India.
Nepal J Ophthalmol. 2020 Jul;12(24):191-200. doi: 10.3126/nepjoph.v12i2.28287.
Pterygium is a common surface disorder of the eye that may cause change in visual acuity of patients by inducing astigmatic refractive error. Surgical excision with grafting is considered the most effective recommended treatment for pterygium. The objective of this study was to evaluate the outcomes of pterygium excision with autologous graft surgery on keratometric astigmatism and visual acuity.
In this study total 64 eyes of 64 patients were enrolled having the diagnosis of pterygium. Prior to the pterygium excision surgery all the enrolled patients were studied for grading of pterygium, clinical symptoms, keratometric values and best corrected visual acuity (BCVA). Postoperatively, BCVA and keratometric readings were recorded at one week, one month, two months and four months intervals.
Mean age of study participants was 34.16 ± 8.24 years in the age group of 18-60 years. 42 (65.62%) eyes had grade II pterygium, while 16 (25.0 %) and 6 (9.38%) eyes were having grade III and grade IV pterygium, respectively. Preoperative median and quartiles (25% -75%) horizontal and vertical keratometric values were 43.00 (42.50-44.00) D and 44.25 (43.75-44.50) D, respectively and both reduced significantly to 42.50 (42.50-42.94) D and 42.50 (42.50- 43.00) D, respectively after four months postoperatively. Median keratometric astigmatism before surgery was 1.37 (1.25-1.93) D which reduced significantly to 0.50 (0.32-0.75) D after four months of pterygium excision. Similarly, BCVA improved significantly [0.20(0.16-0.25) vs 0.53 (0.50-0.80)] when assessed postoperatively after four months.
Excision of pterygium with autologous graft reduced pterygium-induced keratometric astigmatism and improved BCVA significantly.
目的：评估翼状胬肉切除联合自体移植物手术对角膜散光和视力的影响。
材料和方法：本研究共纳入 64 例 64 只眼翼状胬肉患者。在进行翼状胬肉切除术前，所有入组患者均进行翼状胬肉分级、临床症状、角膜曲率值和最佳矫正视力（BCVA）评估。术后 1 周、1 个月、2 个月和 4 个月时记录 BCVA 和角膜曲率读数。
结果：研究参与者的平均年龄为 34.16 ± 8.24 岁，年龄在 18-60 岁之间。42 只（65.62%）眼为 II 级翼状胬肉，16 只（25.0%）和 6 只（9.38%）眼分别为 III 级和 IV 级翼状胬肉。术前水平和垂直角膜曲率值中位数（25% -75%）分别为 43.00（42.50-44.00）D 和 44.25（43.75-44.50）D，术后 4 个月均显著降低至 42.50（42.50-42.94）D 和 42.50（42.50-43.00）D。术前角膜散光中位数为 1.37（1.25-1.93）D，术后 4 个月显著降低至 0.50（0.32-0.75）D。同样，术后 4 个月 BCVA 也显著提高[0.20（0.16-0.25）vs 0.53（0.50-0.80）]。
结论：翼状胬肉切除联合自体移植物可降低翼状胬肉引起的角膜散光，显著提高 BCVA。
