Snellen Eye Chart, Rosenbaum Pocket & Jaeger Eye Charts

• Snellen Eye Chart:
  • Purpose: Measures distance visual acuity to assess how well a person can see at a standard distance.
  • Design: Features rows of letters in decreasing sizes based on Snellen notation, calibrated for use at 20 feet (6 meters) to determine various levels of visual clarity.
  • Application: Commonly used in clinical settings, schools, and vision screenings to evaluate visual sharpness and diagnose refractive errors.
• Rosenbaum Pocket Chart:
  • Purpose: Assesses near visual acuity and is designed for use at close distances.
  • Design: Compact and portable, featuring various sizes of text and symbols arranged to test reading vision at a typical reading distance of 14-16 inches.
  • Application: Ideal for use in routine eye exams and quick vision assessments, especially useful for evaluating presbyopia and near vision clarity.
• Jaeger Eye Chart:
  • Purpose: Evaluates near visual acuity, focusing on reading and close-up vision.
  • Design: Contains text in various sizes (Jaeger numbers) to assess the smallest print size a person can read at a standard reading distance of 14-16 inches.
  • Application: Often used alongside other visual acuity tests to provide a comprehensive assessment of near vision, particularly useful for diagnosing and managing presbyopia.

Each chart serves a unique purpose in visual acuity testing, offering a comprehensive approach to assessing both distance and near vision.