Sensibilidade ao contraste na retinopatia diabética tratada por panfotocoagulação com laser de argônio

Maia, Otacílio de Oliveira; Takahashi, Walter Yukihiko; Sampaio, Marcos; Hokazono, Kenzo; Misawa, Alexandre Kazuo

doi:10.1590/s0004-27492007000500007

Cited by 3 publications

(3 citation statements)

References 16 publications

(19 reference statements)

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“…Each frequency tested starts with a high level of contrast, which is then progressively decreased. The patient simply reports the lowest perceptible contrast “patch.” (25). Table distance and ambient illumination (in cd/m 2 ) were standardized for each spatial frequency, as instructed by the manufacturer.…”

Section: Methodsmentioning

confidence: 99%

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Comparison of Visual Evoked Potentials in Patients Affected by Optic Neuritis From Multiple Sclerosis or Neuromyelitis Optica Spectrum Disorder

Filgueiras¹,

Oyamada²,

Hokazono³

et al. 2021

Journal of Neuro-Ophthalmology

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Purpose: To compare the visual evoked potentials (VEPs) of optic neuritis (ON) patients with multiple sclerosis (MS), neuromyelitis optica spectrum disorder (NMOSD), and controls. To evaluate correlations between VEP and optical coherence tomography (OCT), contrast sensitivity (CS), and automated perimetry. Methods: Fifty-five eyes with ON from 29 patients (MS = 14 and NMOSD = 15) and 57 eyes from 29 controls were evaluated using VEP, automated perimetry, CS, and optical coherence tomography. Three groups were analyzed: 1) MS eyes with history of ON (ON-MS), 2) NMOSD eyes with ON (ON-NMOSD), and 3) healthy controls. Groups were compared and associations between the parameters were tested. Results: Compared to controls, ON-MS eyes showed significantly delayed N75 and P100 latencies when using a medium-sized stimulus (30 9 ), and delayed P100 latency when using a large stimulus (1.5°), but similar amplitudes. Compared to controls, ON-NMOSD eyes showed significantly lower N75/P100 amplitudes (both stimulus sizes) and P100/N135 amplitudes (with the 30 9 stimulus), but latencies did not differ, except for a delayed P100 latency with the 30 9 stimulus. When comparing the 2 ON groups using the 1.5°stimulus, there was significant delay in P100 latency in ON-MS eyes and a reduction in N75/P100 amplitude in ON-NMOSD eyes. Peripapillary retinal nerve fiber layer, macular inner retinal layers, and CS measurements were significantly smaller in ON patients than in controls. A strong correlation was found between VEP parameters and inner retinal layer thickness in ON-NMOSD eyes. Conclusions: ON-MS eyes had normal amplitude and delayed VEP latency, whereas ON-NMOSD eyes displayed reduced amplitude and preserved latency when elicited by checkerboard stimulus with large 1.5°checks. Under such conditions, VEP may help distinguish resolved MS-related ON from resolved NMOSD-related ON.

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Section: Methodsmentioning

confidence: 99%

“…The patient simply reports the lowest perceptible contrast "patch." (25). Table distance and ambient illumination (in cd/m 2 ) were standardized for each spatial frequency, as instructed by the manufacturer.…”

Section: Ophthalmic Examination and Visual Function Testingmentioning

confidence: 99%

Comparison of Visual Evoked Potentials in Patients Affected by Optic Neuritis From Multiple Sclerosis or Neuromyelitis Optica Spectrum Disorder

Filgueiras¹,

Oyamada²,

Hokazono³

et al. 2021

Journal of Neuro-Ophthalmology

Self Cite

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“…The efficacy endpoints consisted of visual acuity (VA), [26] contrast sensitivity (CS), [27] and glare sensitivity (GS). [28] All these endpoints were measured before and after 4-month treatment.…”

Section: Methods and Patientsmentioning

confidence: 99%

Therapeutic effect of lutein supplement on non-proliferative diabetic retinopathy

Ren

Qi²,

Su³

et al. 2019

Medicine

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This study retrospectively evaluated the effect of lutein supplement (LS) on patients with non-proliferative diabetic retinopathy (NPDR). A total of 72 patients with NPDR were included in this study. All patients received Zeaxanthin during the study period. In addition, 36 patients also received LS and were assigned to the treatment group, while the other 36 patients did not receive LS and were assigned to the control group. All patients were treated for a total of 4 months. The endpoints included visual acuity (VA), contrast sensitivity (CS), and glare sensitivity (GS). In addition, any adverse events were also assessed. All endpoints were measured before and after 4-month treatment. Before treatment, there were no significant differences in VA ( P = .75), CS ( P = .71), and GS ( P = .73) between two groups. After 4-month treatment, there were still no significant differences in all endpoints of VA ( P = .66), CS ( P = .58), and GS ( P = .61) between two groups. No adverse events were recorded in either group. The results of this retrospective study showed that LS may not benefit for patients with NPDR after 4-month treatment. More high quality randomized controlled trials should still be needed to warrant the results of this study.

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Impacto da catarata congênita na sensibilidade ao contraste espacial de luminância em crianças

Martins¹

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Sensibilidade ao contraste na retinopatia diabética tratada por panfotocoagulação com laser de argônio

Abstract: There was no significant alteration in the contrast sensitivity of patients with diabetic retinopathy after panphotocoagulation with argon laser in the studied period.

Cited by 3 publications

References 16 publications

Comparison of Visual Evoked Potentials in Patients Affected by Optic Neuritis From Multiple Sclerosis or Neuromyelitis Optica Spectrum Disorder

Comparison of Visual Evoked Potentials in Patients Affected by Optic Neuritis From Multiple Sclerosis or Neuromyelitis Optica Spectrum Disorder

Therapeutic effect of lutein supplement on non-proliferative diabetic retinopathy

Impacto da catarata congênita na sensibilidade ao contraste espacial de luminância em crianças

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