The eye must be able to change its refractive properties to focus images of both distant and nearby objects on the retina. Distant objects (greater than 30 feet or 9 meters away from the eye) emit or reflect light that can be focused on the retina in a normal relaxed eye (Figure 14.8).
Ramona is a census-designated place (CDP) in San Diego County, California. The population was 20,292 at the 2010 census. The term Ramona also refers to an unincorporated community (with some plans to incorporate) that includes both the Ramona CDP and the adjacent CDP of San Diego Country Estates.
For the community in Marin County with this name, see Shafter, Marin County, California. Shafter is a city in Kern County, California, United States. It is located 18 miles (29 km) west-northwest of Bakersfield. The population was 16,988 at the 2010 census, up from 12,736 at the 2000 census. The city is located along State Route 43.