Related Experiment Video
Updated: Mar 14, 2026

09:29
A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision
Published on: February 11, 2014
13.6K
Improving access to vision screening in urban Philadelphia elementary schools
Lisa A Hark1, Eileen L Mayro2, Judie Tran2
1Department of Research, Wills Eye Hospital, Philadelphia, Pennsylvania; Department of Ophthalmology, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania.
Summary
The Wills Eye Vision Screening Program provided crucial vision care to urban Philadelphia children. The program successfully screened thousands, offering glasses and referrals for refractive errors and eye diseases.
Area of Science:
- Community health
- Pediatric ophthalmology
- Public health initiatives
Background:
- The Wills Eye Vision Screening Program for Children targets urban elementary schools in Philadelphia.
- It aims to detect vision problems, correct refractive errors with glasses, and refer children with other eye conditions.
Purpose of the Study:
- To evaluate the effectiveness of a community-based vision screening program for children.
- To assess the program's ability to provide vision correction and referrals in an underserved urban population.
Main Methods:
- Vision screening for visual acuity, stereopsis, and color vision was conducted in grades K-5 across 45 schools.
- Children failing screening received on-site optometric assessment, with two pairs of free eyeglasses provided.
- Referrals were made to Wills Eye Hospital for suspected non-refractive eye disease, with social worker follow-up.
Main Results:
- Over 10,700 children were screened, with 12% identified as having refractive errors.
- 77% of children with refractive errors received two pairs of glasses.
- Of 509 referred children, 127 completed eye examinations at Wills Eye Hospital.
Conclusions:
- The program effectively delivers comprehensive vision screening, including eyeglasses and referrals.
- It serves as a model for addressing vision care needs in underserved urban communities.
Related Concept Videos
Vision
61.2K
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
61.2K
Primary Healthcare Services
2.6K
Primary care promotes wellness and prevents disease. This care includes health promotion, education, protection (such as immunizations), early disease screening, and environmental considerations. Settings providing this type of healthcare include physician offices, public health clinics, school nursing, and community health nursing.
In 1978, international leaders convened in Alma-Ata, Kazakhstan, for what would be a pivotal event in global health. The Alma-Ata Declaration was the first to call...
In 1978, international leaders convened in Alma-Ata, Kazakhstan, for what would be a pivotal event in global health. The Alma-Ata Declaration was the first to call...
2.6K

