未经证实:翼状胬肉是一种良性结膜纤维血管肿瘤,逐渐侵犯角膜,它会导致角膜变形和散光,或加重预先存在的生理散光,定义为≤0.50D,不需要光学校正。翼状胬肉的根治性治疗是单纯手术,结膜角膜缘移植术和结膜自体移植术成为首选的手术技术。该研究的主要目的是调查翼状胬肉手术是否不会使术前生理性散光恶化。
UNASSIGNED:这是一项在拉巴特穆罕默德五世军事医院眼科进行的为期12个月的前瞻性队列研究,包括43例II/III/IV期翼状胬肉,由同一位外科医生通过结膜自体移植进行手术。首先,我们研究了翼状胬肉手术与散光变化之间的关联.对于定量变量,我们使用Wilcoxon检验。在第二步中,我们根据术前散光≤0.5D或>0.5D的值将文件分为两个不同的组,以检测翼状胬肉手术对生理散光的影响。通过比较这些特征的分布对数据进行统计分析。
未经证实:中位散光为1D(0.25;2.50)。我们人群中有35%的术前散光≤0.5D。Wilcoxon检验显示术前和术后散光之间存在统计学上的显着差异(p=0.001)。配对样本T检验显示生理性散光人群的术前和术后结果无统计学差异(p=0.53)。
UNASSIGNED:许多研究表明翼状胬肉切除对散光的益处,但是很少有研究指出这种手术对生理性散光的影响。我们的研究表明,翼状胬肉手术不会改变生理性散光。
UNASSIGNED: Pterygium is a benign conjunctival fibrovascular neoformation progressively encroaching on the cornea, it can cause corneal distortion and induce astigmatism, or aggravate pre-existing physiological astigmatism, which is defined as ≤ 0.50 D and not requiring optical correction. The radical treatment of
pterygium is purely surgical, with conjunctivo-limbal grafting and conjunctival autografting emerging as the surgical techniques of choice. The main objective of the study was to investigate whether pterygium surgery does not worsen the preoperative physiological astigmatism.
UNASSIGNED: This is a prospective cohort study conducted in the ophthalmology department of the Mohammed V Military Hospital in Rabat over a period of 12 months, including 43 stage II/III/IV pterygia that were operated on by conjunctival autograft by the same surgeon. First, we looked for an association between
pterygium surgery and variations in astigmatism. For quantitative variables we used the Wilcoxon test. In a second step we split the file into two distinct groups according to the value of preoperative astigmatism≤ 0.5 D or >0.5 D in order to detect the impact of pterygium surgery on physiological astigmatism. Statistical analysis of the data was performed by comparing the distribution of these characteristics.
UNASSIGNED: The median astigmatism was 1 D (0.25; 2.50). 35% of our population had preoperative astigmatism ≤0.5 D. The Wilcoxon test showed that there was a statistically significant difference between preoperative and postoperative astigmatism (p = 0.001). The paired sample T-test showed no statistically significant difference between the preoperative and postoperative outcome in the physiological astigmatism population (p = 0.53).
UNASSIGNED: Many studies have shown the benefits of
pterygium excision on astigmatism, but few studies have specified the impact of this surgery on physiological astigmatism. Our study showed that
pterygium surgery does not alter physiological astigmatism.