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Use of peripheral chatter lines for free-flap alignment during LASIK
Jae Hwan Lee1, Min Kim, Eung Kweon Kim
1Department of Ophthalmology, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea.
Purpose:
To report a case in which an improperly rotated free flap was successfully repositioned using peripheral chatter lines as a reference.
Methods:
A 30-year-old woman with irregular astigmatism as the result of an improperly rotated free flap during LASIK underwent repositioning of the corneal flap correspondingly along the chatter lines.
Results:
Best spectacle-corrected visual acuity improved from 20/100 to 20/20 following the procedure. Corneal topography showed improvement in the astigmatism and the Placido disk pattern.
Conclusions:
When marks on a free flap are obscured during LASIK, periodic chatter lines can be used for realignment if no other landmarks are available.
