Ophthalmology involves the treatment of the eye and vision disorders. An ophthalmologist is a physician who diagnoses and treats eye disorders and diseases, and sometimes performs eye surgery. Ophthalmology is more than just vision care. This specialist is trained to medically or surgically treat all ocular and vision problems, including disorders of the eyelids and visual pathways. The ophthalmologist also provides comprehensive vision exams and prescribes glasses and contact lenses.

Doctor density varies by specialty and location. California has 2,924 practicing ophthalmologists. Broken out by city, ophthalmology doctor density in S San Francisco is 1, in Sacramento is 132, in Saint Helena is 2, in Salinas is 12, in San Bernardino is 29, in San Bruno is 4, in San Carlos is 8, in San Clemente is 13, in San Diego is 167, in San Francisco is 218, in San Gabriel is 14, in San Jose is 89, in San Juan Capistrano is 1, in San Leandro is 7, in San Luis Obispo is 27, in San Marcos is 2, in San Marino is 4, in San Mateo is 26, in San Pablo is 2, in San Pedro is 3, in San Rafael is 19, in San Ramon is 12, in Sanford is 2, in Sanger is 2, in Santa Ana is 43, in Santa Barbara is 36, in Santa Clara is 20, in Santa Cruz is 21, in Santa Fe Springs is 1, in Santa Maria is 25, in Santa Monica is 40, in Santa Paula is 1, in Santa Rosa is 39, in Saratoga is 2, in Seal Beach is 3, in Seaside is 1, in Sebastopol is 5, in Selma is 11, in Sherman Oaks is 11, in Simi Valley is 8, in Solvang is 4, in Somis is 1, in Sonoma is 5, in Sonora is 5, in South Gate is 4, in South Laguna is 2, in South Lake Tahoe is 1, in South Pasadena is 1, in South San Francisco is 4, in Squaw Valley is 1, in Stanford is 35, in Stanton is 1, in Stockton is 40, in Studio City is 1, in Sun City is 20, in Sun Valley is 1, in Sunnyvale is 14, in Sutter Creek is 1, and in Sylmar is 7.

California’s population is 36,142,137, and it is America’s third largest and most populous state. It also claims the highest and lowest altitudes in the lower 48 states. The lowest point in the country, Death Valley, is also home to the nation’s highest recorded temperature, 134 degrees. Tourists flock to this state for its many outdoor activities and attractions, including Universal Studios, Disneyland, Rodeo Drive shopping, the Golden Gate Bridge in San Francisco, wine country tours, and California’s numerous beaches and parks. Los Angeles is the nation’s second largest city, but California’s capital is Sacramento. The giant sequoias in California’s forests are among the oldest living things in the world, and a redwood in the Redwood National Park is said to be the world’s tallest tree, at 365 feet. California achieved statehood in 1850, and was named the Golden State after the beginning of the Gold Rush in 1848.

According to 2005 Census estimates, California has a population of 36,132,147. Of this population, 9,308,563 are under the age of 18 and 3,827,038 are at or above the age of 65.