Trends in Registered Blindness and its Causes over 19 Years in Western Australia

Yong, Vernon K.; Morgan, William H.; Cooper, Richard L.; Shaw, Mary; Bremner, Alexandra; Bulsara, Max; Yu, Dao‐Yi

doi:10.1080/09286580500473779

Cited by 32 publications

(25 citation statements)

References 15 publications

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“…Glaucoma is the second most common cause of blindness, with raised intraocular pressure (IOP) being the major treatable risk factor 1 2. Current techniques for monitoring glaucoma progression depend upon measuring the consequences of the disease, namely loss of neural tissue or visual field.…”

mentioning

confidence: 99%

The association between retinal vein ophthalmodynamometric force change and optic disc excavation

Hazelton

Balaratnasingamm

et al. 2008

British Journal of Ophthalmology

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mentioning

confidence: 99%

The association between retinal vein ophthalmodynamometric force change and optic disc excavation

Hazelton

Balaratnasingamm

et al. 2008

British Journal of Ophthalmology

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“…G laucoma is the second commonest cause of blindness in the developed world, 1 and remains the second most important cause of blindness and visual impairment globally. 2 Its aetiology remains unclear; however, elevated intraocular pressure (IOP) and optic nerve haemorrhage (ONH) are the major risk factors linked to the presence of glaucoma and its progression.…”

mentioning

confidence: 99%

Value of retinal vein pulsation characteristics in predicting increased optic disc excavation

Balaratnasingam

Morgan

Hazelton

et al. 2006

British Journal of Ophthalmology

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Background: Retinal vein pulsation is often absent in glaucoma, but can be induced by applying a graded ophthalmodynamometric force (ODF) to the eye, which is elevated in glaucoma. Aim: To assess whether ODF has a predictive value in determining glaucoma progression. Methods: 75 patients with glaucoma and suspected glaucoma were examined prospectively in 1996, and then re-examined at a mean of 82 months later. All subjects had intraocular pressure, visual fields, stereo optic disc photography and ODF measured on their initial visit. When venous pulsation was spontaneous, the ODF was said to be 0 g. At re-examination, central corneal thickness and blood pressure were also measured. Initial and subsequent optic disc photographs were compared and graded into those that had increased excavation and those that had remained stable. The relationship between increased excavation (recorded as a binary response) and the measured variables was modelled using a multiple mixed effects logistic regression. Results: ODF at the initial visit was strongly predictive of increased excavation (p = 0.004, odds ratio 1.16/g, range 0-60 g), with greater predictive value in women than in men (p = 0.004). Visual field mean deviation was predictive of increased excavation (p = 0.044), as was optic nerve haemorrhage in association with older age (p = 0.038). Central corneal thickness was not significantly predictive of increased excavation (p = 0.074) after having adjusted for other variables. Conclusion: ODF measurement seems to be strongly predictive of the patient's risk for increased optic disc excavation. This suggests that ODF measurement may have predictive value in assessing the likelihood of glaucoma progression.

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“…(B) Incidence of individuals who were legally blind registered annually in Western Australia per 100 000 population over 24 years. Data from a previous study, Yong et al 16 and from this study.…”

Section: Resultsmentioning

confidence: 70%

Prevalence of blindness in Western Australia: a population study using capture and recapture techniques

et al. 2011

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Trends in Registered Blindness and its Causes over 19 Years in Western Australia

Abstract: There has been a nonlinear decrease in the incidence of registered blindness, in particular glaucoma-related blindness, in Western Australia. Rates of total registered blindness and that due to ARMD fell from 1984 to 1994, but have risen since.

Cited by 32 publications

References 15 publications

The association between retinal vein ophthalmodynamometric force change and optic disc excavation

The association between retinal vein ophthalmodynamometric force change and optic disc excavation

Value of retinal vein pulsation characteristics in predicting increased optic disc excavation

Prevalence of blindness in Western Australia: a population study using capture and recapture techniques

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