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  Indian J Med Microbiol
 

Figure 3: Iontophoresis-assisted transepithelial collagen cross-linking. (a) Process of iontophoresis – delivery electrode placed on riboflavin-soaked cornea and counter electrode placed on forehead/cervical vertebrae of the patient. (b) 1 mA of current causes riboflavin penetration into corneal stroma

Figure 3: Iontophoresis-assisted transepithelial collagen cross-linking. (a) Process of iontophoresis – delivery electrode placed on riboflavin-soaked cornea and counter electrode placed on forehead/cervical vertebrae of the patient. (b) 1 mA of current causes riboflavin penetration into corneal stroma