This is the space that the eye captures when looking at a fixed point. To carry out an examination of the visual field, the patient sits before a concave screen and gazes at a centrally placed object. A computer program emits small lights of variable intensity at different sites of the screen and the patient presses a button as soon as light is perceived. The patient responses are compared to a control group of subjects of equivalent age to determine the presence of visual field defects.
Published in Chapter:
E-Ophthalmology in the Diagnosis and Follow-Up of Chronic Glaucoma
Jose Andonegui (Complejo Hospitalario de Navarra, Spain), Aitor Eguzkiza (Public University of Navarra, Spain), Mikel Auzmendi (Public University of Navarra, Spain), Luis Serrano (Public University of Navarra, Spain), Ane Zurutuza (Complejo Hospitalario de Navarra, Spain), and Mónica Pérez de Arcelus (Complejo Hospitalario de Navarra, Spain)
Copyright: © 2013
|Pages: 21
DOI: 10.4018/978-1-4666-3990-4.ch005
Abstract
e-Ophthalmology is the use of information and telecommunications technologies to provide or support a group of activities related to ophthalmic care. Chronic glaucoma is an ocular disease characterized by optic neuropathy that leads to progressive loss of the visual fields and often is associated with elevated intraocular pressure levels. Glaucoma is an important public health problem because it is one of the main causes of blindness worldwide and generates an important demand for ophthalmologic consultations. The aim of this chapter is to discuss the application e-Ophthalmology-based models in the diagnosis and follow-up of chronic glaucoma. The authors describe the current status of the use of e-Ophthalmology-based models in the screening and follow-up of chronic glaucoma, the main advantages of these models, the technologic requirements for their implementation, and future trends in this field.