A simple mathematical model of rhegmatogenous retinal detachment.
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| Title: | A simple mathematical model of rhegmatogenous retinal detachment. |
|---|---|
| Authors: | Natali, Damiano1, Repetto, Rodolfo1, Tweedy, Jennifer H.2, Williamson, Tom H.3,4, Pralits, Jan O.1 jan.pralits@unige.it |
| Source: | Journal of Fluids & Structures. Oct2018, Vol. 82, p245-257. 13p. |
| Subjects: | Retinal detachment, Fluid dynamics, Steady-state flow, Vibration (Mechanics), Geometry |
| Abstract: | Abstract The conditions under which rhegmatogenous retinal detachment occurs are poorly understood, which hampers the success rates of surgery. Fluid dynamical effects play a major role, and in this paper we analyse the tendency for the retina to detach further in both the case of a free flap giant retinal tear (GRT) and in the case of a retinal hole (RH). For this purpose we use a mathematical model to investigate the interaction between the fluid flow and the detached retina during saccadic eye movements. The governing equations are solved numerically using a code developed ad hoc. An idealised two-dimensional geometry is used and realistic values of almost all governing parameters are taken from the literature. For the cases of both GRT and a RH we investigate the tendency for the detachment to progress, analysing two different saccadic motions, different lengths of the detached retina, different attachment angles and, in the case of a RH, different hole diameters. In both cases we find that increasing the length of the detached retina increases the tendency for further detachment, while in the RH case, changing its diameter has little or no effect. We also find the existence of an attachment angle that maximises the tendency to detach, and the model indicates that RHs are more prone to detach further than GRTs. In spite of the fact that the model is highly idealised the results agree qualitatively well with the available clinical evidence. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Fluids & Structures is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 132322026 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A simple mathematical model of rhegmatogenous retinal detachment. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Natali%2C+Damiano%22">Natali, Damiano</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Repetto%2C+Rodolfo%22">Repetto, Rodolfo</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Tweedy%2C+Jennifer+H%2E%22">Tweedy, Jennifer H.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Williamson%2C+Tom+H%2E%22">Williamson, Tom H.</searchLink><relatesTo>3,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Pralits%2C+Jan+O%2E%22">Pralits, Jan O.</searchLink><relatesTo>1</relatesTo><i> jan.pralits@unige.it</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Fluids+%26+Structures%22">Journal of Fluids & Structures</searchLink>. Oct2018, Vol. 82, p245-257. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Retinal+detachment%22">Retinal detachment</searchLink><br /><searchLink fieldCode="DE" term="%22Fluid+dynamics%22">Fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Steady-state+flow%22">Steady-state flow</searchLink><br /><searchLink fieldCode="DE" term="%22Vibration+%28Mechanics%29%22">Vibration (Mechanics)</searchLink><br /><searchLink fieldCode="DE" term="%22Geometry%22">Geometry</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract The conditions under which rhegmatogenous retinal detachment occurs are poorly understood, which hampers the success rates of surgery. Fluid dynamical effects play a major role, and in this paper we analyse the tendency for the retina to detach further in both the case of a free flap giant retinal tear (GRT) and in the case of a retinal hole (RH). For this purpose we use a mathematical model to investigate the interaction between the fluid flow and the detached retina during saccadic eye movements. The governing equations are solved numerically using a code developed ad hoc. An idealised two-dimensional geometry is used and realistic values of almost all governing parameters are taken from the literature. For the cases of both GRT and a RH we investigate the tendency for the detachment to progress, analysing two different saccadic motions, different lengths of the detached retina, different attachment angles and, in the case of a RH, different hole diameters. In both cases we find that increasing the length of the detached retina increases the tendency for further detachment, while in the RH case, changing its diameter has little or no effect. We also find the existence of an attachment angle that maximises the tendency to detach, and the model indicates that RHs are more prone to detach further than GRTs. In spite of the fact that the model is highly idealised the results agree qualitatively well with the available clinical evidence. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Fluids & Structures is the property of Academic Press Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jfluidstructs.2018.06.020 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 245 Subjects: – SubjectFull: Retinal detachment Type: general – SubjectFull: Fluid dynamics Type: general – SubjectFull: Steady-state flow Type: general – SubjectFull: Vibration (Mechanics) Type: general – SubjectFull: Geometry Type: general Titles: – TitleFull: A simple mathematical model of rhegmatogenous retinal detachment. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Natali, Damiano – PersonEntity: Name: NameFull: Repetto, Rodolfo – PersonEntity: Name: NameFull: Tweedy, Jennifer H. – PersonEntity: Name: NameFull: Williamson, Tom H. – PersonEntity: Name: NameFull: Pralits, Jan O. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2018 Type: published Y: 2018 Identifiers: – Type: issn-print Value: 08899746 Numbering: – Type: volume Value: 82 Titles: – TitleFull: Journal of Fluids & Structures Type: main |
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