Bhanges of corneal refractive power aftert he implantation of intrastromal corneal ring
- VernacularTitle:基质内角膜环植入后角膜屈光力变化实验研究
- Author:
Weijie, NI
;
Zemin, SHEN
- Publication Type:Journal Article
- Keywords:
intrastromal;
corneal;
ring;
myopia-surgery;
corneal;
refractive;
power
- From:
Chinese Journal of Experimental Ophthalmology
2001;19(1):8-11
- CountryChina
- Language:Chinese
-
Abstract:
ObjectiveTo evaluate the safety and efficacy of the refractive effect produced by the implantation of intrastromal corneal ring （ICR）．MethodsEach of the 60 eyes （30 rabbits） received an ICR．The thickness of the ICRs varied from 0.19mm to 0.41mm．Each eye underwent a preoperative and postoperative examinations at the lst，3rd，7th and 14th day；the lst，3rd and 6th month．Slit-lamp biomicroscopy and an ORBSCANTM slit scan corneal tomography／pachymetry system were performed at predetermined intervals throughout the follow-up periods．ResultsThe decrease of corneal curvature was observed after ICR implantation in all of the eyes．There was a direct relationship between the ICR thickness and the degree of corneal flattening achieved．The equation is：D＝1.4353－32.87×thickness．The postoperative refractive effect was stable．Wound healing was uncomplicated and central cornea remained transparent．ConclusionThe ICR implantation is safe and effective and the refractive effect is predictive and stable．
