About this trial
Optical Coherence Tomography (OCT) machines are non-contact instruments that can measure the depth of scars and other causes of cloudiness in the front of the cornea. The purpose of this study is to determine whether OCT-guided settings for the lasers used for removal of corneal scars and other partial-thickness corneal defects result in improved vision in patients receiving these procedures.
Eligibility criteria
Qualifiers
Patients with vision primarily limited by superficial opacities and irregularities that could be removed by PTK while leaving at least 250 µm.
Disqualifiers
Inability to give informed consent
Inability to maintain stable fixation for OCT imaging
Inability to commit to required visits to complete the study
Deep corneal opacities and irregularities
Trial design
Treatments tested in this trial
- OCT-guided laser phototherapeutic keratectomy
Treatment groups
Sponsors and collaborators
Oregon Health and Science University
Lead sponsor
National Eye Institute (NEI)
Collaborator