This Kaiser Health News story was written by Heidi de Marco and was first published on California Healthline, a service of the California Health Care Foundation. Daisy Leon struggles to sit still and read the letters on the eye chart. Her responses tumble out in a quiet, confused garble. “You know your letters?” asks optometrist Jolly Mamauag-Camat. “Umm, ya,” says Daisy, almost inaudibly. The 6-year-old kindergartner had her eyes examined for the first time on a recent Thursday morning. Although she hadn’t complained about headaches or blurry vision, her grandmother noticed she’d been inching closer to watch television. After Daisy’s failed attempts at reading the eye chart, Mamauag-Camat inspects the little girl’s eyes through a phoropter and writes her a prescription for glasses. At least 20 percent of school-age children in the United States have vision problems. But according to the Centers for Disease Control and Prevention, fewer than 15 percent of children get an eye exam before entering kindergarten. Because vision problems tend to worsen the longer they go undetected, many children suffer even though there are often simple, relatively inexpensive solutions such as prescription glasses. Half of the states plus the District of Columbia require screenings or exams for preschoolers, according to the National Center for Children’s Vision & Eye Health. But California has no such requirement, said Xuejuan Jiang, an assistant professor of research ophthalmology at Keck School of Medicine of USC. California does require them for older children. “The system in California is not as good as it can be,” Jiang said. In much of California’s Central Valley, where roughly one in five people live in poverty, two school districts are working with two nonprofits, the Advanced Center for Eyecare and OneSight, to provide vision care to Kern County’s underserved and uninsured children. Many of the neediest are the children of farmworkers. “We are an agriculture-based community,” said Linda Hinojosa, coordinator of health services for the Delano Union School District. “Most of our families harvest table grapes 12 hours a day, with very limited time to take their children in for an eye exam.” The program, funded by the nonprofits and the school districts, operates five school-based clinics in Bakersfield and Delano. Students receive comprehensive eye exams and glasses, along with free transportation. And breakfast. Most of the children who visit the clinics have coverage through Medi-Cal, California’s Medicaid program for low-income people. There is no out-of-pocket cost for the eye exams and glasses for them, or for children who are uninsured, said Alexander Zahn, chief business development officer for the Advanced Center for Eyecare. Almost half of the students examined need glasses. “The need was very apparent” in the Central Valley, Zahn said. “Sixty dollars for an eye exam and $80 for glasses might be the difference between eating dinner a couple days a week.” Daisy was among 12 students who were bused to the Delano Union School District Vision Center, adjacent to Pioneer School, an elementary school with about 1,000 students. Almost all the students at Pioneer are Hispanic and about three-quarters qualify for free or reduced-price lunches. Students from throughout the Delano Union School District visit the clinic. Since it opened in 2018, the clinic has performed 961 eye exams and prescribed 517 pairs of glasses. For Daisy, whose parents are farmworkers, the clinic has been a tremendous help. “They prune out in the fields,” said Guadalupe Leon, Daisy’s grandmother. “They can’t afford to take days off.” Kaiser Health News (KHN) is a national health policy news service. It is an editorially independent program of the Henry J. Kaiser Family Foundation which is not affiliated with Kaiser Permanente.