New perspectives on glaucoma screening.

Glaucoma is defined as elevated intraocular pressure resulting in visual field defects. Elevated intraocular pressure without visual field defects is referred to as ocular hypertension. The prevalence of open-angle glaucoma in the population above the age of 40 years is less than one percent.

Health care in modern Cuba.

An extensively organized, centrally controlled system, aimed at equalizing and improving the distribution and quality of medical services according to population and geography, characterizes the modern Cuban health care complex. Facilities of increasing sophistication are located in urban areas while an expanding series of ambulatory, multipotential polyclinics attempts to provide most health services in both urban and rural settings. Maternal and child care, immunization programs and other forms of preventive medicine represent major priorities for expenditures.