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Central island treatment using Technolas 217 based on Orbscan II assessment
Arthur C K Cheng1, Dennis S C Lam
1Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, University Eye Center, Hong Kong Eye Hospital, Hong Kong, China. artcheng@netvigator.com
Journal of Refractive Surgery (Thorofare, N.J. : 1995)
|June 28, 2005
Summary
This study presents a case of central island after myopic laser eye surgery. Topography-guided laser ablation successfully reduced the central island and improved vision.
Area of Science:
- Ophthalmology
- Refractive Surgery
Background:
- Central island is a rare complication following myopic laser in situ keratomileusis (LASIK).
- This condition can negatively impact visual acuity and quality of vision.
Observation:
- A case of central island after myopic LASIK is presented.
- Corneal topographies were obtained using Orbscan to assess the central island.
Findings:
- A topography-guided ablation profile was generated using the Technolas 217 excimer laser.
- Phototherapeutic keratectomy (PTK) mode and surface ablation technique were employed for treatment.
- Significant reduction in central island height was observed.
- Best spectacle-corrected visual acuity improved from 20/40 to 20/25 post-treatment.
Implications:
- Topography-guided ablation offers a potential treatment strategy for central islands after myopic LASIK.
- This approach can help restore visual function in affected patients.