Clinical Exam

For educational purposes only. These tools are teaching and screening aids, not medical devices, and do not replace a standard clinical examination.

Interactive examination tools to use with a patient — the stimulus on screen, scoring as you go.

Acuity

  • Snellen Chart — Interactive distance visual-acuity chart, scored letter by letter as the patient reads.
  • Contrast Sensitivity — Letter contrast chart with triplet scoring, built on Pelli–Robson principles.

Colour Vision

  • Color Plates — Interactive colour-vision screening with automated scoring.
  • Blue or Red Light — Red or blue target for comparing colour saturation between eyes.

Fields and Refraction

  • Amsler Grid — Interactive central visual-field screening grid.
  • Axis Finder — Astigmatic clock dial with rule-of-30 axis readout.
  • Anisometropia — Interocular image-size comparison and spectacle-magnification estimate.

For educational purposes only. The Clinical Exam tools are part of an educational platform. They are screening and teaching aids, not certified medical devices: a result depends on the screen (letter sizes are estimated for the type of device), the lighting and the testing distance. They are not a diagnosis, and any abnormal or doubtful result should be confirmed with a standard clinical test.