Optics Simulator - Ray Diagram
Interactive ray diagrams
$1.99 · Designed for iPad. Not verified for macOS.
Optics Simulator turns the equations of clinical optics into live, interactive ray diagrams. Move an object, slide a lens along the optical axis, change diopters, rotate a prism — and watch the geometry, focal points, image position, and magnification update in real time.
Each simulator displays its governing equation in textbook serif math, with the current numerical values substituted alongside, so you can connect the picture to the formula. A built-in practice section quizzes the underlying concepts with parameterised diagrams (the answer is hidden in the stem and revealed once you check your work).
INCLUDED SIMULATORS
• Snell's Law and Total Internal Reflection — refraction at an interface
• Vergence and Thin Lenses — draggable object and lens, full three-ray construction
• Schematic Eye — cornea + crystalline lens + axial length; lens shape changes with power
• Refractive Errors — myopia and hyperopia with a spectacle at adjustable vertex distance
• Lens Effectivity — see how moving a lens toward the eye changes effective power
• Astigmatism — the Conoid of Sturm with a cross-section explorer
• Telescopes — Galilean and Keplerian, both lenses are draggable
• Simple Magnifier — at, inside, or beyond the focal length
• Mirrors — concave, convex and plano, with C and F marked
• Prisms — clinical prism diopters and geometric minimum-deviation
REFERENCE
• A formula sheet with every equation the app uses, typeset in serif math
• Built-in practice problems organised by section
DESIGN
• Black-and-white interface so the colored rays remain the most prominent thing on screen
• Adaptive layout: simulator stays visible alongside the controls in landscape
• No accounts, no ads, no tracking, no internet connection required
For health-profession students, ophthalmology residents, optometry students, and anyone who would rather see optics work than memorise formulas.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, My Call Bag LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- My Call Bag LLC
- Size
- 697.3 KB
- Category
- Education
- Compatibility
Requires iOS 26.4 or later.
- iPhone
Requires iOS 26.4 or later. - iPad
Requires iPadOS 26.4 or later. - Mac
Requires macOS 26.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.4 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © My Call Bag LLC

