Titlebook: Diagnostics in Ocular Imaging; Cornea, Retina, Glau Mehrdad Mohammadpour Book 2021 Springer Nature Switzerland AG 2021 Corneal Topography.K

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https://doi.org/10.1007/978-3-662-64593-2A healthy cornea generates about 70% of the total eye refractive power of about 60 diopters (Picero DP, Alcуn N in Journal of Cataract & Refractive Surgery 40(6), 2014). Consequently, variations in biomechanical and geometrical properties of cornea can intensely affect corneal refractive power and may interrupt the eye vision.

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Anterior Segment Optical Coherence TomographyOptical coherence tomography (OCT) was first introduced in 1991 for imaging the retina (Sridhar and Martin in Indian J Ophthalmol 66:367, 2018 [.]) and 3 years later in 1994 the first anterior segment OCT (AS-OCT) was proposed for imaging the anterior segment of the eye.

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Corneal BiomechanicsA healthy cornea generates about 70% of the total eye refractive power of about 60 diopters (Picero DP, Alcуn N in Journal of Cataract & Refractive Surgery 40(6), 2014). Consequently, variations in biomechanical and geometrical properties of cornea can intensely affect corneal refractive power and may interrupt the eye vision.

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Aberration, Aberrometry and AberrometersIn the XIth century, the thesis of the visual ray was definitively abandoned in favor of Ibn al-Haytham’s waork [.] which revolutionized the optics [.].

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OCT Angiography (OCT-A)OCT-A is a novel imaging technique that extracts volumetric images of microvascular circulation from the data of OCT images.

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Fluorescein AngiographyFundus Fluorescein Angiography (FFA) has become an indispensable and essential tool in the diagnosis and management of many retinal conditions e.g. retinovascular disease, inflammatory conditions, and tumors since 1961 when fluorescein angiography was presented in ophthalmic imaging by Novotny and Alvis.