Causes of Visual Field Defects After Vitrectomy

Takenaka, Hisashi; Maeno, Takatoshi; Mano, Tomoo; Mitsuda, H.

doi:10.1016/s0021-5155(99)00128-8

Cited by 5 publications

(4 citation statements)

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“…12 Each of these theories is reinforced by the observation that techniques to limit intraocular pressure spikes, surgical time, and retinal dehydration 15 have led to lower rates of such complications. 12 Although no surgery has taken place in our patients, an interesting recent theory is relevant to our group: that shearing damage may occur during the peeling of the posterior vitreous from the point where it is tightly adherent to the disc and RNFL (usually at the nasal margin) 16 as is often required in such surgery.…”

Section: Discussionmentioning

confidence: 99%

Idiopathic Acquired Temporal Wedge Visual Field Defects

Gilhooley

Fraser

Wong

et al. 2016

Neuro-Ophthalmology

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Our aim is to report 13 unusual cases of acquired, temporal sectoral scotomas. Such stationary "wedge" field defects have been reported previously in cases of presumed congenital nasal hypoplasia of the optic disc and as a complication of vitreoretinal surgery. To our knowledge, the literature provides no reports of similar defects occurring spontaneously. This is a descriptive clinical case series of 13 patients presenting with sub-acute monocular temporal visual field loss. All were clinically assessed and investigated with Goldmann perimetry, automated Humphrey visual fields, retinal optical coherence tomography, orbital ultrasound, and standard and multifocal electroretinography. Cases were followed with serial perimetry for a mean of 3.9 years (range: 6 months to 10 years). Goldmann and Humphrey perimetry both demonstrated "wedge"-shaped defects extending temporally from an apex contiguous with, or lateral to, the blind spot. There was no evidence of optic disc drusen, glaucoma, disc hypoplasia, or focal retinitis. Sectoral optic disc swelling was not present in any patient at presentation. In all cases, the visual field defect remained stable. One patient developed a similar defect in the fellow eye after an interval of 5 years. Here we describe 13 cases of acquired, stationary temporal wedge scotomas, novel in the literature. Although the aetiology is uncertain, we propose damage to the nasal rim of the optic disc as a likely mechanism.ARTICLE HISTORY

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Section: Discussionmentioning

confidence: 99%

Idiopathic Acquired Temporal Wedge Visual Field Defects

Gilhooley

Fraser

Wong

et al. 2016

Neuro-Ophthalmology

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“…Welch [20] sowie Takenaka u. Mitarb. [19] fanden eine Beziehung zwischen der Lage der Gesichtsfelddefekte und der Position des Infusionsports. Sie beobachteten ausschlieûlich Gesichtsfelddefekte im nasal unteren Quadranten nachdem sie den Infusionsport nicht wie üblich temporal, sondern nasal unten platzierten.…”

Section: Patienten Und Methodenunclassified

Vergleichende Untersuchung zur Genese von Gesichtsfelddefekten nach epimakulärer Chirurgie

Dillinger

Lägel

Mester

2002

Klin Monatsbl Augenheilkd

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“…[2][3][4][5][6] Several clinical studies on patients developing VFDs after macular hole surgery featuring fluid-air exchange have provided strong evidence that infusion of pressurized air is damaging. [7][8][9] A relationship between the location of a VFD and that of the infusion cannula has been confirmed in multiple studies. 9,10 Several animal studies have shown that a pressurized air flow damages the inner retinal layer, creating irregularities in the internal limiting membrane (ILM), detachment of the ILM, and exposure of the Müller cells and nerve fiber bundles.…”

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confidence: 88%

“…[7][8][9] A relationship between the location of a VFD and that of the infusion cannula has been confirmed in multiple studies. 9,10 Several animal studies have shown that a pressurized air flow damages the inner retinal layer, creating irregularities in the internal limiting membrane (ILM), detachment of the ILM, and exposure of the Müller cells and nerve fiber bundles. 11,12 Such surface changes in the retina provide direct evidence of mechanical damage caused by a pressurized air flow.…”

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confidence: 88%