Confocal Brillouin microscopy for three-dimensional mechanical imaging.
Giuliano Scarcelli, Seok Hyun Yun
https://pubmed.ncbi.nlm.nih.gov/19812712/Actively Recruiting
Led by Massachusetts General Hospital · Updated on 2025-11-06
168
Participants Needed
1
Research Sites
N/A
Total Duration
Researchers are evaluating the potential of a new technique called Brillouin microscopy to diagnose corneal conditions such as keratoconus and ectasia. The study compares the biomechanical properties of corneas in people with keratoconus, those with post-LASIK ectasia, and individuals with normal corneas. This observational study aims to better understand differences in corneal tissue using this advanced imaging method. Participants include volunteers with normal corneas, patients diagnosed with various stages of keratoconus, individuals who had LASIK surgery with or without complications, people scheduled for PRK or LASIK surgery, and patients with Fuchs endothelial corneal dystrophy. The study involves axial scans of the cornea using Brillouin imaging to assess and compare corneal biomechanics across these groups. Specific inclusion and exclusion criteria apply to each group based on diagnosis, prior surgeries, and other eye health factors. During the study, participants undergo corneal imaging to measure the corneas elastic modulus, reflecting its biomechanical properties. Researchers monitor these properties over time to evaluate the diagnostic capabilities of Brillouin microscopy. Participants will be assessed for corneal health through topography, pachymetry, and clinical evaluations, with the study lasting several years to gather comprehensive data. The research team also excludes individuals unable to understand imaging instructions or with certain eye conditions to ensure accurate measurements.
CONDITIONS
A Study to Test the Diagnostic Potential of Brillouin Microscopy for Corneal Ectasia
F
Fatima Clouser, MS
A
Andy Yun, PhD
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Massachusetts General Hospital
Lead Sponsor
Harvard Medical School (HMS and HSDM)
Collaborating Sponsor
You may qualify if you...
You will not qualify if you...
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Duration - Up to 1 day
Participants undergo Brillouin imaging to assess the corneal properties related to ectasia and other corneal conditions.
1 visit (in-person)
Duration - Up to 10 years
Participants may be observed over time to monitor changes in corneal properties and disease progression.
Follow-up visits as scheduled depending on participant group
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
7
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Giuliano Scarcelli, Seok Hyun Yun
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https://pubmed.ncbi.nlm.nih.gov/22159012/Massachusetts General Hospital
Lead Sponsor
Harvard Medical School (HMS and HSDM)
Collaborating Sponsor