Na Li, Zhengjun Fan, Xiujun Peng, Xu Pang, Chunyu Tian
Department of Ophthalmology,Navy General Hospital of Chinese PLA,Beijing 100048,China
Introduction


Materials and methods
Study subjects

Diagnosis and exclusion criteria
Surgical procedures

Preoperative examination and postoperative follow up


Statistical analysis


Figure 1 Corneal tonography before surgery

Figure 2 Corneal tonography at postoperative 6 months
Results
Time of electric current



Table 1 Clinical observation of transepithelial collagen cross-linking by iontophoretic delivery of riboflavin (means±s)
Comparison of clinical indications before and after transepithelial collagen cross-linking by iontophoretic delivery of riboflavin

Pain intensity and corneal reactions


Postoperative demarcation line depth

Discussion






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