PMC3180498_01
Appearance of case 1 (A) at initial presentation, (B) 2 weeks after crosslinking, (C) 2 weeks after crosslinking (note the stromal demarcation line due to crosslinking, adjacent to the abscess), and (D) 2 months after crosslinking.
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Ocular examination showed an elliptical, central area of corneal infiltration, 4 mm x 2 mm in diameter (Figure 1A). Two weeks after crosslinking, the corneal abscess and epithelium had completely healed, with a residual scar remaining (Figure 1B). A demarcation line was clearly visible in the cornea adjacent to the corneal abscess (Figure 1C). AG, Basel, Switzerland) drops twice daily for 1 month. At 2 months, the BCVA was 20/40, the infection had completely resolved, but vision was impaired by a central corneal scar (Figure 1D).
PMC3180498_02
Appearance of case 2 (A) at initial presentation, (B) 1 week after crosslinking (note the cleaner margins and decreased infiltrate density of the abscess), (C) 2 months after crosslinking (infiltration has been replaced by scar tissue; note the presence of an intrastromal hemorrhage), and (D) after penetrating keratoplasty combined with cataract extraction.
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Ocular examination showed a large corneal abscess measuring 9 mm horizontally by 7 mm vertically (Figure 2A). One week after crosslinking, the corneal abscess appeared to have better-defined margins and less infiltration than before (Figure 2B). Superficial and deep stromal blood vessels were encroaching on the central cornea, causing an intra-abscess bleed (Figure 2C). Four months after crosslinking, penetrating keratoplasty combined with extracapsular cataract extraction and intraocular lens implantation was performed, uneventfully (Figure 2D).