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E. M. Vingolo, S. Salvatore, D. Domanico, P. G. Limoli; Vitreo-Retinal Surface Analysis with Short Wavelenght SLO. Invest. Ophthalmol. Vis. Sci. 2010;51(13):2508.
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Evaluation of vitreoretinal(V-R)interface in macula region today is widely performed using OCT scans,even if with this technique images are a threedimensional reconstruction of the V-R surface by several linear scansions. Purpose of the study is to evaluate if a new device with short wavelenght SLO (swSLO)may be able to identify and map areas where this interface is thicker.
Nidek F10 analysis with short wavelenght SLO was used to study V-R interface in patients with complete or incomplete posterior hyaloid detachment, initial V-R syndrome, with macular cellophane and posterior pole V-R tractions (pucker-hole). Were studied 36 eyes (20 pts.)divided in 4 groups depending on V-R alteration severity with swSLO and OCT spectralis, V-R drawings for each eye were compared to evaluate V-R extensions
presented data clearly show (fig 1) the extension of areas in wich V-R alterations are more tight allowing us either a quantitative or a qualitative evaluatin that it is really useful in patients follow-up. Moreover in our opinion, clinical correlations between F10 and OCT scans present the best clinical view in deciding surgery time and technical approach in more severe cases as macular hole and pucker. Short wavelenght SLO has the advantage to underline, for its optical carachteristics, with higher reflection spots brighter zones in which posterior hyaloid adheres to retinal ILM as showed by OCT scans. Further focus adjustement may highlight to the surgeon, on retinal surface, folds striae and duplication of these membranes
Our study evidentiates that with the use of short wavelenght SLO represents a different mapping of inner vitreoretinal surface opening a new approach in evaluation of surgical timing related to V-R function, blue laser emission consents very clear images and an easy a superimpression of SLO images and microperimetric (retinal sensitivity) data allowing better monitoring of the patient during the time.
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