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Fig. 3 | BMC Ophthalmology

Fig. 3

From: Effects of excimer laser phototherapeutic keratectomy in limbal-conjunctival autograft transplantation for recurrent pterygium: a retrospective case control study

Fig. 3

Slit-lamp photos of the patients. a Preoperative recurrent pterygium affecting the pupil area in a 63-year-old male before surgery. b Six months after surgical removal and PTK treatment, the cornea was clear and smooth. c Recurrent pterygium in a 67-year-old male. d Six months after surgery without PTK treatment, the nasal cornea was rough and opaque. PTK: excimer laser phototherapeutic keratectomy

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