File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Macular translocation surgery: Computer simulation of visual perception

TitleMacular translocation surgery: Computer simulation of visual perception
Authors
KeywordsImage warping
Macular translocation surgery
Neurosensory redistribution
Issue Date2008
PublisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00417/index.htm
Citation
Graefe's Archive For Clinical And Experimental Ophthalmology, 2008, v. 246 n. 6, p. 831-836 How to Cite?
AbstractBackground: Macular translocation can be associated with visual improvement, but patients often experience symptoms of confusion or diplopia. There is a high incidence of suppression of the operated or the fellow eye. The aim of this study is to use computer software to examine the pre- and post-operative fundal images, in order to better understand how patients see after macular translocation surgery. Methods: We created a graphical user interface that allowed a user to identify and record common landmark points in pre- and post-operative fundal images. We used these points to carry out interpolations using two algorithms, namely bilinear and thin-plate spline transformations. The transformations were applied to the Mona Lisa in order to appreciate how patients might see. Results: Given two sets of corresponding points, both algorithms were able to approximate the effect of the surgery. Bilinear transformation was able to account for changes to the retina as a whole, including rotation, stretches, compression and shear. The thin-plate spline algorithm additionally accounted for the considerable regional and uneven local effects. Applying the later algorithm to the Mona Lisa produced inconsistent and warped images. Conclusions: Our results confirmed that neurosensory redistribution was associated with most cases of MT360. We infer from these results that corresponding retinal elements between two eyes would no longer correspond after surgery. The distortion of images from the operated eye could not be completely corrected by squint surgery, and this may account for the high incidence of suppression of the fellow or the operated eye after surgery. © Springer-Verlag 2008.
Persistent Identifierhttp://hdl.handle.net/10722/90386
ISSN
2015 Impact Factor: 1.991
2015 SCImago Journal Rankings: 1.217
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWong, Den_HK
dc.contributor.authorLiazos, Sen_HK
dc.contributor.authorMehta, Jen_HK
dc.contributor.authorFarnell, DJJen_HK
dc.date.accessioned2010-09-06T10:09:39Z-
dc.date.available2010-09-06T10:09:39Z-
dc.date.issued2008en_HK
dc.identifier.citationGraefe's Archive For Clinical And Experimental Ophthalmology, 2008, v. 246 n. 6, p. 831-836en_HK
dc.identifier.issn0721-832Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/90386-
dc.description.abstractBackground: Macular translocation can be associated with visual improvement, but patients often experience symptoms of confusion or diplopia. There is a high incidence of suppression of the operated or the fellow eye. The aim of this study is to use computer software to examine the pre- and post-operative fundal images, in order to better understand how patients see after macular translocation surgery. Methods: We created a graphical user interface that allowed a user to identify and record common landmark points in pre- and post-operative fundal images. We used these points to carry out interpolations using two algorithms, namely bilinear and thin-plate spline transformations. The transformations were applied to the Mona Lisa in order to appreciate how patients might see. Results: Given two sets of corresponding points, both algorithms were able to approximate the effect of the surgery. Bilinear transformation was able to account for changes to the retina as a whole, including rotation, stretches, compression and shear. The thin-plate spline algorithm additionally accounted for the considerable regional and uneven local effects. Applying the later algorithm to the Mona Lisa produced inconsistent and warped images. Conclusions: Our results confirmed that neurosensory redistribution was associated with most cases of MT360. We infer from these results that corresponding retinal elements between two eyes would no longer correspond after surgery. The distortion of images from the operated eye could not be completely corrected by squint surgery, and this may account for the high incidence of suppression of the fellow or the operated eye after surgery. © Springer-Verlag 2008.en_HK
dc.languageengen_HK
dc.publisherSpringer Verlag. The Journal's web site is located at http://link.springer.de/link/service/journals/00417/index.htmen_HK
dc.relation.ispartofGraefe's Archive for Clinical and Experimental Ophthalmologyen_HK
dc.rightsThe original publication is available at www.springerlink.com-
dc.subjectImage warpingen_HK
dc.subjectMacular translocation surgeryen_HK
dc.subjectNeurosensory redistributionen_HK
dc.subject.meshChoroidal Neovascularization - etiology - surgery-
dc.subject.meshComputer Simulation-
dc.subject.meshImage Processing, Computer-Assisted-
dc.subject.meshRetina - physiology - transplantation-
dc.subject.meshVisual Perception - physiology-
dc.titleMacular translocation surgery: Computer simulation of visual perceptionen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0721-832X&volume=246&issue=6&spage=831&epage=836&date=2008&atitle=Macular+translocation+surgery:+computer+simulation+of+visual+perceptionen_HK
dc.identifier.emailWong, D: shdwong@hku.hken_HK
dc.identifier.authorityWong, D=rp00516en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00417-008-0771-1en_HK
dc.identifier.pmid18286298-
dc.identifier.scopuseid_2-s2.0-43249090793en_HK
dc.identifier.hkuros152805en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-43249090793&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume246en_HK
dc.identifier.issue6en_HK
dc.identifier.spage831en_HK
dc.identifier.epage836en_HK
dc.identifier.isiWOS:000255628200006-
dc.publisher.placeGermanyen_HK
dc.identifier.scopusauthoridWong, D=7401536078en_HK
dc.identifier.scopusauthoridLiazos, S=23501909000en_HK
dc.identifier.scopusauthoridMehta, J=23501882700en_HK
dc.identifier.scopusauthoridFarnell, DJJ=7004457484en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats