prikaz prve stranice dokumenta Spotlight on the Corneal Back Surface Astigmatism: A Review
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Scientific paper - Review paper
Spotlight on the Corneal Back Surface Astigmatism: A Review
Clinical Ophthalmology, Volume 15 (2021); 3157-3164. https://doi.org/10.2147/OPTH.S284616
Patel, Sudi; Tutchenko, Larysa

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Patel, S. & Tutchenko, L. (2021). Spotlight on the Corneal Back Surface Astigmatism: A Review. Clinical Ophthalmology, Volume 15., 3157-3164. doi: 10.2147/OPTH.S284616

Patel, Sudi and Larysa Tutchenko. "Spotlight on the Corneal Back Surface Astigmatism: A Review." Clinical Ophthalmology, vol. Volume 15, 2021, pp. 3157-3164. https://doi.org/10.2147/OPTH.S284616

Patel, Sudi and Larysa Tutchenko. "Spotlight on the Corneal Back Surface Astigmatism: A Review." Clinical Ophthalmology Volume 15 (2021): 3157-3164. https://doi.org/10.2147/OPTH.S284616

Patel, S. and Tutchenko, L. (2021) 'Spotlight on the Corneal Back Surface Astigmatism: A Review', Clinical Ophthalmology, Volume 15, pp. 3157-3164. doi: 10.2147/OPTH.S284616

Patel S, Tutchenko L. Spotlight on the Corneal Back Surface Astigmatism: A Review. Clinical Ophthalmology [Internet]. 2021 July [cited 2025 April 11];Volume 15:3157-3164. doi: 10.2147/OPTH.S284616

S. Patel and L. Tutchenko, "Spotlight on the Corneal Back Surface Astigmatism: A Review", Clinical Ophthalmology, vol. Volume 15, pp. 3157-3164, July 2021. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:184:088632. [Accessed: 11 April 2025]

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Metadata
Title (english)Spotlight on the Corneal Back Surface Astigmatism: A Review
AuthorSudi Patel
AuthorLarysa Tutchenko
Author's institutionUniversity of Rijeka
Faculty of Medicine
Scientific / art field,
discipline and subdiscipline		BIOMEDICINE AND HEALTHCARE
Clinical Medical Sciences
Ophthalmology
Abstract (english)
Recent evidence indicates that the corneal back surface astigmatism (CBSA) contributes to the refractive state of the eye in cataract surgery, especially with the implantation of toric intraocular lenses. But this has been met with some scepticism. A review of key studies performed over the past three decades shows that the mean CBSA power ranges from 0.18(±0.16)D to 1.04(±0.20)D. The clinical assessment of CBSA is problematic. There is poor agreement between the current automated systems for... More assessment of CBSA and it is assumed that these systems directly measure the CBSA. But CBSA cannot be measured directly in vivo. A historical review of methods used to quantify the curvature of the posterior corneal surface reveals that CBSA estimated by current systems is based on values for corneal front surface astigmatism, corneal refractive index, central corneal thickness, corneal thickness at peripheral locations and the exact distance between the corneal apex and each one of these peripheral locations. Doubts and errors in these values, coupled with the precise details of the algorithm incorporated to estimate CBSA, are the likely sources of the lack of agreement between current systems. These systematic errors cloud the assessment of CBSA. Mean CBSA may be low, but it varies from case to case. There is a clear need for a realistic, practical procedure for clinicians to independently calibrate systems for estimating CBSA. This would help to reduce uncertainty and the discrepancies between instruments designed to measure the same parameter Less
Keywords (english)
Languageenglish
Publication typeScientific paper - Review paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleClinical Ophthalmology
Numberingvol. Volume 15, pp. 3157-3164
e-ISSN1177-5483
DOIhttps://doi.org/10.2147/OPTH.S284616
URN:NBNurn:nbn:hr:184:088632
Publication2021-07
Document URLhttps://www.dovepress.com/spotlight-on-the-corneal-back-surface-astigmatism-a-review-peer-reviewed-fulltext-article-OPTH
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) icon
Created on2023-02-01 08:29:02
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