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.
Location. From Interstate 10 at a point about 6 miles East of the I5 and I10 intersection, exit at New Avenue. Travel approximately 2 miles North on South New Avenue and South Ramona Street (stay to the right where New turns into Ramona and use caution, these are all residential streets).