Eye chart smaller symbols until the person cannot identify the symbols. The smallest symbols that can be reliably identified is considered the person's visual acuity. The Snellen chart is the most widely used. Alternative types of eye charts include the logMAR chart, Landolt C, E chart, Lea test, Golovin–Sivtsev table, the Rosenbaum chart, and the Jaeger chart. Charts display several rows of optotypes, which are standardized symbols for testing vision. Optotypes are usually letters, numbers, or geometric symbols. Each row of the chart depicts optotypes of a different size. Typically the largest optotypes are in the top row. The optotypes become progressively
Eye care in Ghana health service provision is done by the Christian Health Association of Ghana. Most of the facilities that CHAG runs have eye clinics and these aid in service delivery in those towns and villages that are situated in. The services that eye care professionals offer are varied and include: The chart below shows the number of eye care professionals in the various regions and also the progress made to restore sight to people with Cataracts in 2005. Despite a population exceeding 2.1 million, the eighteen districts in Ghana's Western Region are among the least resourced in terms of eyecare services. Professional