Hill of vision in glaucoma
Research type
Research Study
Full title
Developing a method to describe the ‘hill of vision’ in glaucoma
IRAS ID
224357
Contact name
David F Garway-Heath
Contact email
Sponsor organisation
Moorfields Eye Hospital NHS Foundation Trust
Duration of Study in the UK
0 years, 11 months, 15 days
Research summary
Visual field(VF) test is one of the most important examinations in the management of glaucoma patients. Its purposes are to aid clinicians to make a diagnosis, assess how glaucoma evolves, and determine how the patient can see. However, information obtained using conventional VF test is not fully sufficient to fulfill these purposes. The field of vision is commonly represented as a hill, with the most sensitive part being the peak or point of fixation, which corresponds to the fovea in the retina.
To map the VF of a patient, which allows the clinician to detect areas of poor vision, visual field is measured at different locations, which are stimulated by various light intensities. However, with the current techniques, the number of locations tested is very limited, which makes it difficult to assess the evolution of the disease with accuracy or to understand patient vision-related quality of life(QoL). Increasing the number of test locations would require longer test duration, which could cause patients tiredness thus reducing the reliability of the examination.
To address this issue, we are developing a new method for predicting sensitivities between the tested locations using conventional VF test without having to increase the number of test locations.
The aim of this study to investigate the agreement of predicted value with the measured sensitivity from a full threshold VF test in glaucoma patients and to compare with the other methods previously reported.REC name
East Midlands - Nottingham 2 Research Ethics Committee
REC reference
17/EM/0243
Date of REC Opinion
14 Jul 2017
REC opinion
Further Information Favourable Opinion