2010
DOI: 10.1590/s0004-27492010000500004
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Relationship between visual field sensitivity loss and quadrantic macular thickness measured with Stratus-Optical coherence tomography in patients with chiasmal syndrome

Abstract: Purpose: To correlate visual field sensitivity (VFS) loss on standard automated perimetry (SAP) and quadrantic macular thickness on optical coherence tomography (OCT) in patients with permanent temporal hemianopia from chiasmal compression. Methods: Forty eyes from 40 patients with chiasmal compression and 40 healthy eyes were submitted to standard automated perimetry and Stratus-OCT scanning. Raw data of the fast macular thickness scanning protocol were exported and macular thickness measurements were recorde… Show more

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Cited by 20 publications
(11 citation statements)
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“…Naopak pro glaukom je typická ztráta tloušťky RNFL v horním a dolním segmentu [7]. Další práce poukazují na opodstatněnost měření RNFL [24,27] nebo tloušťky vrstvy gangliových buněk (Ganglion Cell Layer, GCL) [2,16,19,29,30,34] v makulární oblasti. Existuje i práce, která vedle signifikantního snížení výše popsaných parametrů, nalezla i paralelní ztluštění vnitřní jádrové vrstvy (Inner Nuclear Layer, INL) [25].…”
Section: úVodunclassified
“…Naopak pro glaukom je typická ztráta tloušťky RNFL v horním a dolním segmentu [7]. Další práce poukazují na opodstatněnost měření RNFL [24,27] nebo tloušťky vrstvy gangliových buněk (Ganglion Cell Layer, GCL) [2,16,19,29,30,34] v makulární oblasti. Existuje i práce, která vedle signifikantního snížení výše popsaných parametrů, nalezla i paralelní ztluštění vnitřní jádrové vrstvy (Inner Nuclear Layer, INL) [25].…”
Section: úVodunclassified
“…For evaluation of the macular area, each macular thickness map was divided into nine regions suggested by the Early Treatment for Diabetic Retinopathy Study including a 1 mm diameter central disc and an inner and outer ring, each divided into four quadrants, with diameters of 3 and 6 mm, respectively. Average macular layer thicknesses (that is, total thickness, nerve fibre layer, ganglion cell layer, outer nuclear layer) in each quadrant (superior, inferior, temporal, nasal) were calculated by averaging the inner and outer segments, excluding the foveal region (Figure ) …”
Section: Methodsmentioning
confidence: 99%
“…Visual field sensitivity was assessed from 17 central test locations, in decibels (dB) (red dashed square on the right side of Figure ), roughly the equivalent of the area tested by optical coherence tomography in the macular scan. Each visual field test location provided in dB was converted to anti‐logged 1/Lambert (1/L) units by dividing the dB value by 10 and anti‐logging the quotient . This conversion is based upon the assumption that the relationship between the structure and function is linear when visual field measures are expressed in a linear scale .…”
Section: Methodsmentioning
confidence: 99%
“…(72,(74)(75)(76) Estudos demonstraram que existe correlação entre a gravidade da perda visual e as medidas de perda axonal retiniana seja pela CFNR seja pela espessura macular. (75,(77)(78) A quantificação da perda neural nas compressões quiasmáticas é também importante no sentido de tentar estimar a possibilidade de recuperação visual. Para isso, é de fundamental importância estudos de correlação estrutura-função, ou seja, verificar como se correlacionam os defeitos permanentes do campo visual com a perda da CFNR.…”
Section: Lesões Do Quiasma óPticounclassified