[近视性屈光性角膜切削术后眼压分析]
[Analysis of intraocular pressure after myopic photorefractive keratectomy].
作者信息
Wu Xiaoying, Liu Shuangzhen, Huang Peigang, Wang Pingbao
机构信息
Ophthalmic Laser Center, Xiangya Hospital, Hunan Medical University, Changsha 410008, China.
出版信息
Zhonghua Yan Ke Za Zhi. 2002 Oct;38(10):603-5.
OBJECTIVE
To explore the factors related to intraocular pressure (IOP) after excimer laser photorefractive keratectomy (PRK).
METHODS
Two hundred and nine cases (364 eyes) of myopia were studied with Goldmann applanation tonometer. All the patients were followed up for 12 months.
RESULTS
After PRK, a decrease was observed in the IOP. The IOP reading in the 12(th) month was lower than that in the 6(th) month (P < 0.001). A positive correlation was found between IOP and corneal thickness or corneal curvature (r = 0.172, P < 0.001, r = 0.182, P < 0.001). Regression equation for IOP drop (mmHg) = 1.156 + 0.22X(1) + 0.052X(2), [X(1) = decrease in corneal thickness ( micro m), X(2) = decrease in corneal curvature (D)].
CONCLUSION
The IOP measured after PRK for myopia is influenced by the corneal thickness, corneal curvature and steroid.
目的
探讨准分子激光屈光性角膜切削术（PRK）后眼压（IOP）的相关影响因素。
方法
采用Goldmann压平眼压计对209例（364只眼）近视患者进行研究。所有患者均随访12个月。
结果
PRK术后眼压下降。术后第12个月的眼压读数低于第6个月（P < 0.001）。眼压与角膜厚度或角膜曲率呈正相关（r = 0.172，P < 0.001；r = 0.182，P < 0.001）。眼压下降（mmHg）的回归方程为：1.156 + 0.22X(1) + 0.052X(2)，[X(1)=角膜厚度减少量（μm），X(2)=角膜曲率减少量（D）]。
结论
近视PRK术后测量的眼压受角膜厚度、角膜曲率和类固醇的影响。
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