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مقاله
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Abstract
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Title:
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Dynamic Scheimpflug-based imaging (Corvis ST) and Ocular response analyzer for Assessment Of Corneal biomechanical Changes after Corneal Collagen Cross-linking in Keratoconus.
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Author(s):
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Ramin Salouti, Mohammad Reza Khalili, Mohammad Hossein Nowroozzadeh, M Zamani, M Azizzadeh, M Ghoreyshi,
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Presentation Type:
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Poster
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Subject:
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Cornea and Anterior Segment
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Others:
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Presenting Author:
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Name:
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Ramin Salouti
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Affiliation :(optional)
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Salouti Eye Clinic, postchi research center, SUMS
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E mail:
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saloutir@hotmail.com
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Phone:
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6278853
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Mobile:
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09171117976
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Purpose:
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TO assess in vivo the changes in biomechanical properties of cornea by using CorVis ST and ORA after treatment of keratoconus patients with UV-A/ CXL
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Methods:
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48 eyes from 48 consecutive patients with progressive keratoconus were enrolled. CorVis and ORA were used and corneal biomechanical parameters were recorded at baseline and 4 months after CXL. Assessed CorVis corneal biomechanical parameters were time to reach applanation the length of the applanated cornea and corneal movement velocity during applanation at the moment of first and second applanations, deformation amplitude , distance between bending points of the cornea, and concave radius of curvature at the point of highest concavity. corneal hysteresis, corneal resistance factor, IOPg, and IOPcc
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Results:
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The mean age of patients was 20 years . At baseline, the averages of the refraction, mean keratometry, and keratometric astigmatism were -3.0 , 47.0 , and 3.5 D, respectively. From the CorVis ST parameters, L2 and V2 showed significant change after CXL. CRF and WS were the only ORA parameters that showed statistically significant change after CXL
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Conclusion:
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CorVis ST and ORA may demonstrate changes in some biomechanical properties of cornea after treatment of keratoconus patients with CXL
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Attachment:
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