期刊
CURRENT OPINION IN OPHTHALMOLOGY
卷 24, 期 4, 页码 310-320出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/ICU.0b013e3283622a94
关键词
corneal and anterior segment tomography; corneal biomechanics; refractive surgery; Scheimpflug
Purpose of reviewTo review the principles and clinical applications of Scheimpflug corneal and anterior segment imaging with special relevance for laser refractive surgery.Recent findingsComputerized Scheimpflug imaging has been used for corneal and anterior segment tomography (CASTm) in different commercially available instruments. Such approach computes the three-dimensional image of the cornea and anterior segment, enabling the characterization of elevation and curvature of the front and back surfaces of the cornea, pachymetric mapping, calculation of the total corneal refractive power and anterior segment biometry. CASTm represents a major evolution for corneal and anterior segment analysis, beyond front surface corneal topography and single point central corneal thickness measurements. This approach enhances the diagnostic abilities for screening ectasia risk as well as for planning, evaluating the results, managing complications of refractive procedures, and selecting intraocular lens power, type, and design. In addition, dynamic Scheimpflug imaging has been recently introduced for in-vivo corneal biomechanical measurements and has also been used for anterior segment imaging of femtocataract surgery.SummaryScheimpflug imaging has an important role for laser refractive surgery with different applications, which continuously improve due to advances in technology.
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