Effect of retinal degeneration on flash and pattern visual evoked responses

Lawrence E. Leguire; Hannah Lim; Gary L. Rogers; Don L. Bremer

Effect of retinal degeneration on flash and pattern visual evoked responses

Lawrence E. Leguire
, Hannah Lim
, Gary L. Rogers
, Don L. Bremer

Ophthalmology

Research output: Contribution to journal › Article › peer-review

Abstract

A retrospective study was undertaken of the flash and pattern visual evoked responses (VER) from 43 patients who were diagnosed with retinal degenerations. The patients were divided into a macular dystrophy group and a rod-cone degeneration group. Flash and pattern VER P₁ implicit times were analyzed for each group. The results revealed that the pattern VER P₁ implicit time was significantly more delayed in the macular dystrophy group than in the rod-cone degeneration group. Conversely, flash VER P₁ implicit time was in general more delayed in the rod-cone degeneration group than in the macular dystrophy group. Differences in P₁ implicit times between flash and pattern VERs within each group also suggested that the pattern VER was more delayed than the flash VER in the macular degeneration group and that the flash VER was more delayed than the pattern VER in the rod-cone degeneration group. The results are explained by the effective area of the flash and pattern VER stimuli and the relative retinal locus of each general type of retinal degeneration.

Original language	English
Pages (from-to)	196-200
Number of pages	5
Journal	Annals of Ophthalmology - Glaucoma
Volume	28
Issue number	3
State	Published - May 1996

Cite this

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title = "Effect of retinal degeneration on flash and pattern visual evoked responses",

abstract = "A retrospective study was undertaken of the flash and pattern visual evoked responses (VER) from 43 patients who were diagnosed with retinal degenerations. The patients were divided into a macular dystrophy group and a rod-cone degeneration group. Flash and pattern VER P1 implicit times were analyzed for each group. The results revealed that the pattern VER P1 implicit time was significantly more delayed in the macular dystrophy group than in the rod-cone degeneration group. Conversely, flash VER P1 implicit time was in general more delayed in the rod-cone degeneration group than in the macular dystrophy group. Differences in P1 implicit times between flash and pattern VERs within each group also suggested that the pattern VER was more delayed than the flash VER in the macular degeneration group and that the flash VER was more delayed than the pattern VER in the rod-cone degeneration group. The results are explained by the effective area of the flash and pattern VER stimuli and the relative retinal locus of each general type of retinal degeneration.",

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year = "1996",

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AU - Leguire, Lawrence E.

AU - Lim, Hannah

AU - Rogers, Gary L.

AU - Bremer, Don L.

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N2 - A retrospective study was undertaken of the flash and pattern visual evoked responses (VER) from 43 patients who were diagnosed with retinal degenerations. The patients were divided into a macular dystrophy group and a rod-cone degeneration group. Flash and pattern VER P1 implicit times were analyzed for each group. The results revealed that the pattern VER P1 implicit time was significantly more delayed in the macular dystrophy group than in the rod-cone degeneration group. Conversely, flash VER P1 implicit time was in general more delayed in the rod-cone degeneration group than in the macular dystrophy group. Differences in P1 implicit times between flash and pattern VERs within each group also suggested that the pattern VER was more delayed than the flash VER in the macular degeneration group and that the flash VER was more delayed than the pattern VER in the rod-cone degeneration group. The results are explained by the effective area of the flash and pattern VER stimuli and the relative retinal locus of each general type of retinal degeneration.

AB - A retrospective study was undertaken of the flash and pattern visual evoked responses (VER) from 43 patients who were diagnosed with retinal degenerations. The patients were divided into a macular dystrophy group and a rod-cone degeneration group. Flash and pattern VER P1 implicit times were analyzed for each group. The results revealed that the pattern VER P1 implicit time was significantly more delayed in the macular dystrophy group than in the rod-cone degeneration group. Conversely, flash VER P1 implicit time was in general more delayed in the rod-cone degeneration group than in the macular dystrophy group. Differences in P1 implicit times between flash and pattern VERs within each group also suggested that the pattern VER was more delayed than the flash VER in the macular degeneration group and that the flash VER was more delayed than the pattern VER in the rod-cone degeneration group. The results are explained by the effective area of the flash and pattern VER stimuli and the relative retinal locus of each general type of retinal degeneration.

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JO - Annals of Ophthalmology - Glaucoma

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Effect of retinal degeneration on flash and pattern visual evoked responses

Abstract

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