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    Asymmetric vitreomacular traction and symmetrical full thickness macular hole formation

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    Publication date
    2015
    Author
    Woon, W.H.
    Greig, D.
    Savage, M.D.
    Wilson, M.C.T.
    Grant, Colin A.
    Bishop, F.
    Mokete, B.
    Keyword
    Bistable
    ; Full thickness macular hole
    ; Pathogenesis
    ; Vitreomacular traction
    Peer-Reviewed
    Yes
    
    Metadata
    Show full item record
    Abstract
    BACKGROUND: A Full Thickness Macular Hole (FTMH) is often associated with vitreomacular traction, and this can be asymmetric with vitreomacular traction on one side of the hole but not the other. In cross-section, the elevated retinal rim around a developed FTMH is seen as a drawbridge elevation, and this drawbridge elevation may be used as a measure of morphological change. Examination of the drawbridge elevation of the retinal rim in FTMH with asymmetric vitreomacular traction may help to clarify the role of vitreomacular traction in the development of FTMH. METHOD: Cases of FTMH were identified with an initial OCT scan showing vitreomacular traction on one side of the hole only and that had a follow-up OCT scan showing progression of the hole. A tangent to the retinal surface at a distance of 700 microns from the axis of the hole was used as a marker of the drawbridge elevation of the retinal rim around the macular hole. Comparisons of the drawbridge elevation and change in drawbridge elevation between the sides with and without initial vitreomacular traction were made. RESULTS: There was no significant difference between the drawbridge elevation, or change in drawbridge elevation, on the side of the hole with initial vitreomacular traction compared to the side without initial traction. CONCLUSION: There is some intrinsic mechanism within the retina to link the morphological changes on the two sides of a FTMH. A bistable hypothesis of FTMH formation and closure is postulated to explain this linkage.
    URI
    http://hdl.handle.net/10454/9250
    Version
    No full-text available in the repository
    Citation
    Woon WH, Greig D, Savage MD et al (2015) Asymmetric vitreomacular traction and symmetrical full thickness macular hole formation. Graefe's Archive for Clinical and Experimental Ophthalmology. 253(11): 1851-1857.
    Link to publisher’s version
    http://dx.doi.org/10.1007/s00417-014-2884-z
    Type
    Article
    Collections
    Life Sciences Publications

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