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Influence of different parameters on the corneal asphericity (Q value) assessed with progress in biomedical optics and imaging ? A review

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dc.citedby0
dc.contributor.authorAl-Sharify N.T.en_US
dc.contributor.authorNser H.Y.en_US
dc.contributor.authorGhaeb N.H.en_US
dc.contributor.authorAl-Sharify Z.T.en_US
dc.contributor.authorSee O.H.en_US
dc.contributor.authorWeng L.Y.en_US
dc.contributor.authorAhmed S.M.en_US
dc.contributor.authorid57205364615en_US
dc.contributor.authorid58296946400en_US
dc.contributor.authorid26428056100en_US
dc.contributor.authorid57204908487en_US
dc.contributor.authorid16023044400en_US
dc.contributor.authorid26326032700en_US
dc.contributor.authorid57696704100en_US
dc.date.accessioned2025-03-03T07:42:36Z
dc.date.available2025-03-03T07:42:36Z
dc.date.issued2024
dc.description.abstractThe corneal eye diseases such as Keratoconus cause weakening of the cornea, with this disease the cornea can change in shape. This condition affects between 1 in 3,000 to 1 in 10,000 people. The main reason for the development of such conditions is unknown and can have significant impacts. Over the last decade, with advancements in computerized corneal topography assessments, researchers have increasingly expressed interest in corneal topography for research as well as clinical activities. Up till now, several aspheric numerical models have been developed as well as proposed to define the complex shape of the cornea. A commonly used term for characterizing the asphericity in an eye is the Q value, a common indicator of the aspherical degree of the cornea. It is one of the critical parameters in the mathematical description model of the cornea as it represents the cornea's shape and the eye's characteristics. Due to the utmost importance of this Q value of the cornea, a couple of studies have attempted to explore this parameter and its distribution, merely in terms of its influence on the human eye's optical properties. The corneal Q value is an important factor that needs to be determined to treat for any refractive errors as corneal degeneration are disease that can lead to potential problems with the structure of the cornea. This study aims to highlight the need to understand Q value of the cornea as this can essentially assist with personalising corneal refractive surgeries and implantation of intraocular lenses. Therefore, the relevance of corneal Q value must be studied in association with different patients, especially ones who have been diagnosed with cataracts, brain tumours, or even COVID-19. To address this issue, this paper first carries out a literature review on the optics of the cornea, the relevance of corneal Q value in ophthalmic practice and studies corneal degenerations and its causes. Thereafter, a detailed review of several noteworthy relevant research studies examining the Q value of the cornea is performed. To do so, an elaborate database is created, which presents a list of different research works examined in this study and provides key evidence derived from these studies. This includes listing details on the age, gender, ethnicity of the eyes assessed, the control variables, the technology used in the study, and even more. The database also delivers important findings and conclusions noted in each study assessed. Next, this paper analyses and discusses the magnitude of corneal Q value in various scenarios and the influence of different parameters on corneal Q value. To design visual optical products as well as to enhance the understanding of the optical properties of an eye, future studies could consider the database and work presented in this study as useful references. In addition, the work can be used to make informed decisions in clinical practice for designing visual optical products as well as to enhance the understanding of the optical properties of an Eye. ? 2024en_US
dc.description.natureFinalen_US
dc.identifier.ArtNoe35924
dc.identifier.doi10.1016/j.heliyon.2024.e35924
dc.identifier.issue16
dc.identifier.scopus2-s2.0-85201114491
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85201114491&doi=10.1016%2fj.heliyon.2024.e35924&partnerID=40&md5=63fb1bf679b51a8dfb694cf338adce80
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/36473
dc.identifier.volume10
dc.publisherElsevier Ltden_US
dc.relation.ispartofAll Open Access; Gold Open Access; Green Open Access
dc.sourceScopus
dc.sourcetitleHeliyon
dc.titleInfluence of different parameters on the corneal asphericity (Q value) assessed with progress in biomedical optics and imaging ? A reviewen_US
dc.typeReviewen_US
dspace.entity.typePublication
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