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Fig. 2 | BMC Ophthalmology

Fig. 2

From: Multiple phototherapeutic keratectomy treatments in a Chinese pedigree with corneal dystrophy and an R124L mutation: a 20-year observational study

Fig. 2

Phototherapeutic keratectomy (PTK) procedures. The images illustrate the subepithelial PTK surgical procedures. Top left: the corneal epithelium was immersed in 20% alcohol. Middle left: the epithelial flap was removed. Bottom left: Bowman’s layer and stroma of the cornea were ablated with laser. Top right: the central zone of the cornea appears transparent after ablation. Middle right: the epithelial flap was repositioned. Bottom right: a bandage contact lens was applied

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