The effect of cataract on Accumap multifocal objective perimetry

Whitehouse, Geoffrey M.

doi:10.1016/s0002-9394(02)02276-6

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…In addition, all mVEP studies to date have applied selection criteria (eg, visual acuity limits, reproducible field defect, unilateral damage, and other ocular pathology) for their selection of subjects. 4,6,7,10,11,20,21 In particular, they usually required reliable confirmed subjective visual fields, which masks some of the limitations of standard perimetry encountered in normal clinical practice.…”

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confidence: 99%

Clinical Application of Objective Perimetry Using Multifocal Visual Evoked Potentials in Glaucoma Practice

2005

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Objectives: To evaluate the role of objective perimetry using multifocal visual evoked potentials (mVEPs) in glaucoma practice, and to assess its utility in patients with inconclusive standard automated perimetry findings. Method: A retrospective case series of 436 consecutive subjects referred for glaucoma investigation who underwent testing with the AccuMap V1.3 mVEP system (Ob-jectiVision Pty, Ltd, Sydney, New South Wales, Australia) within a defined 12-month period. Sensitivity was determined by comparing this testing with that of standard automated perimetry and that used in a subgroup in whom masked stereoscopic optic disc photographs were used as an alternative reference standard. Overall clinical diagnostic outcomes were assessed. Results: The mVEP changes were correlated with the stage of disease and Humphrey mean deviation (r=0.78). The overall sensitivity for detecting glaucoma with established subjective field loss was 97.5% (early glaucoma, 95.0%), whereas 92.2% of low-risk suspects had normal mVEPs. When masked disc assessment alone was used for diagnosis of abnormality, sensitivity of mVEP (80.6%) and Humphrey visual field results (81.9%) were similar, but mVEP specificity was better (89.2% vs 79.5%). The mVEP was particularly useful in assessing excessive subjective field loss (45 eyes) by showing a much closer correlation with the clinical picture. Conclusions: Multifocal VEP is an effective method for detecting visual field loss in glaucoma. It provides a valuable aid to the clinician in categorizing patients with unreliable, variable, unconfirmed, or excessive subjective field loss.

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confidence: 99%

Clinical Application of Objective Perimetry Using Multifocal Visual Evoked Potentials in Glaucoma Practice

2005

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“…The total deviation from expected threshold was measured for each point of the visual field. Based on previous studies on patients with ON, HVF results were considered abnormal if the MD was worse than −3.0dB 16,19 , 20 . A significant defect on the HVF perimetry was defined as cluster of three or more abnormal points including at least two or more points depressed by a P ‐value of less than 0.005.…”

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confidence: 99%

Multifocal objective perimetry compared with Humphrey full‐threshold perimetry in patients with optic neuritis

Pakrou

Casson

Kaines

et al. 2006

Clinical Exper Ophthalmology

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“…Some studies have concluded that VF indexes do not change substantially, 1,2 although most studies have found that global VF indexes, like the mean deviation, show significant improvement after CE. [3][4][5][6][7][8][9][10][11] The underlying severity of VF loss at the time of CE may lessen the extent of VF improvement that can be expected. 4,10 The aims of this study were to evaluate (1) the incidence of and predictors for CE in patients with newly diagnosed glaucoma, (2) the short-term impact of CE on VA, VF, and vision-specific quality of life (VS-QOL), and (3) the extent to which these clinical and VS-QOL measures change in the years preceding and following CE.…”

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confidence: 99%

Cataract Extraction in the Collaborative Initial Glaucoma Treatment Study

Musch¹

2006

Arch Ophthalmol

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Objectives: To study the incidence of and predictors for cataract extraction (CE) in patients with newly diagnosed glaucoma, the impact of CE on visual function, and changes in the time around CE. Methods: Patients were randomized to medical or surgical treatments for glaucoma at 14 centers and followed up for a median of 7.7 years. Vision-specific quality of life (VS-QOL) data were collected by telephone interview during follow-up of 607 patients randomized to medical or surgical treatments for glaucoma. The occurrence of CE was the signal event. Risk factors were evaluated using survival analyses; changes from before to after CE were evaluated by paired t tests; and trends were estimated by loess regression. Results: During follow-up of 607 patients, CE took place

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The effect of cataract on Accumap multifocal objective perimetry

Cited by 7 publications

References 7 publications

Clinical Application of Objective Perimetry Using Multifocal Visual Evoked Potentials in Glaucoma Practice

Clinical Application of Objective Perimetry Using Multifocal Visual Evoked Potentials in Glaucoma Practice

Multifocal objective perimetry compared with Humphrey full‐threshold perimetry in patients with optic neuritis

Cataract Extraction in the Collaborative Initial Glaucoma Treatment Study

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