Ger H. M. B. van Rens

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BACKGROUND Cataract and glaucoma are the major causes of blindness in Nepal. Bhaktapur is one of the three districts of Kathmandu valley which represents a metropolitan city with a predominantly agrarian rural periphery. This study was undertaken to determine the prevalence of visual impairment, cataract surgery and awareness of cataract and glaucoma among(More)
The Low Vision Quality of Life (LVQOL) questionnaire and the Vision-related Quality of Life Core Measure (VCM1) are two of the many vision-related quality of life (QOL) questionnaires that have been developed in recent years. Although psychometric properties of the LVQOL and VCM1 compare well with other vision-related QOL questionnaires, construct and(More)
Being unable to read is a major problem for visually impaired patients. Since distance visual acuity (VA) does not adequately reflect reading ability, it is important to also evaluate near VA. The Radner Reading Charts (RRCs) are available to measure patients’ reading performance. The present study tested the inter-chart and test-retest reliability of the(More)
An epidemiological study of the occurrence of angle-closure glaucoma was made under the Eskimos population of the Norton Sound and Bering Straits region of Alaska. Among 1673 Alaskan Natives examined 14 cases (0.8%) of angle-closure glaucoma were found, in 0.5% of the men and 1.2% of the women; for persons above the age of 40 years these figures were 2.1%(More)
Older adults with a visual impairment are particularly vulnerable for increased depression and anxiety symptoms; however, they tend to underutilise mental health services. The present study aims to characterise the perceived need for and barriers to use mental health services in visually impaired older adults based on Andersen’s behavioural model. A(More)
BACKGROUND Vitreo-retinal diseases are among the leading causes of visual impairment and blindness worldwide. This study reports the prevalence and pattern of vitreo-retinal diseases in the Bhaktapur Glaucoma Study (BGS), a population based study conducted in Nepal. METHODS BGS was a population based cross-sectional study involving 4800 subjects aged 40(More)
To critically appraise the measurement properties of questionnaires measuring participation in children and adolescents (0–18 years) with a disability. Bibliographic databases were searched for studies evaluating the measurement properties of self-report or parent-report questionnaires measuring participation in children and adolescents (0–18 years) with a(More)
This study compares the influence of two different types of magnification (magnifier versus large print) on crowded near vision task performance. Fifty-eight visually impaired children aged 4–8 years participated. Participants were divided in two groups, matched on age and near visual acuity (NVA): [1] the magnifier group (4–6 year olds [n = 13] and 7–8(More)
BACKGROUND Glaucoma is a major cause of blindness worldwide and an increasingly significant global health problem. Glaucoma prevention and management efforts have been challenging due to inherent difficulty in developing a simple and cost-effective screening plan, limited access to health care and educational resources, poverty, and inadequate knowledge of(More)