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  Indian J Med Microbiol
 

Figure 1: (a) Instillation of riboflavin 0.1% drop in the center of 7.5 mm circle marked on the back of inoculated agar plate. (b) Exposure of the riboflavin saturated area to ultraviolet-A irradiance of 3.0 mW/cm2 (c) Growth inhibition zone following photoactivated chromophore for keratitis–corneal cross-linking on Pseudomonas aeruginosa inoculate (d) Growth inhibition zone following photoactivated chromophore for keratitis–corneal cross-linking on Staphylococcus aureus inoculate. (e) No growth inhibition zone following photoactivated chromophore for keratitis–corneal cross-linking on Candida albicans inoculate. (f) 1 – Nonnutrient agar plate with Escherichia coli overlay, 5 mm disc of cultured Acanthamoeba, with cultured surface facing Escherichia coli. 2 – Magnified view of inverted 5 mm disc of cultured Acanthamoeba. 3 – Acanthamoeba growing from the margin of the disc (×10)

Figure 1: (a) Instillation of riboflavin 0.1% drop in the center of 7.5 mm circle marked on the back of inoculated agar plate. (b) Exposure of the riboflavin saturated area to ultraviolet-A irradiance of 3.0 mW/cm<sup>2</sup> (c) Growth inhibition zone following photoactivated chromophore for keratitis–corneal cross-linking on <i>Pseudomonas aeruginosa</i> inoculate (d) Growth inhibition zone following photoactivated chromophore for keratitis–corneal cross-linking on <i>Staphylococcus aureus</i> inoculate. (e) No growth inhibition zone following photoactivated chromophore for keratitis–corneal cross-linking on <i>Candida albicans</i> inoculate. (f) 1 – Nonnutrient agar plate with <i>Escherichia coli</i> overlay, 5 mm disc of cultured <i>Acanthamoeba</i>, with cultured surface facing <i>Escherichia coli.</i> 2 – Magnified view of inverted 5 mm disc of cultured <i>Acanthamoeba.</i> 3 – <i>Acanthamoeba</i> growing from the margin of the disc (×10)