Simulations on Light Paths and the Eye
Structure of the Eye
Work out the structure of the human eye, label its parts, and match each structure to the correct function.
The Light Path Simulation
Explore the path of light while changing the number of lenses and their refractive power. Change the displayed objects and investigate how distance affects the image shown on the screen.
Accommodation and Control of Incoming Light
Investigate how the eye adapts to objects at different distances to maintain a sharp image and how it regulates the amount of incoming light.
Causes of Refractive Error and Their Correction
Investigate how the two types of refractive error arise and how corrective lenses restore normal vision.
The Retina
Investigate how rods and cones respond to light, how colour vision arises, and how light stimuli in the retina are converted into electrical impulses and passed on.
Task 1: Label the parts of the eye in the illustration.
Task 2: Match each part of the eye to the correct function.
Object
Lens
Iris
Ciliary muscle
Zonular fibresStructure of the Retina
Label key retinal structures and match them to the correct functions. The focus is on the structure of sensory cells and downstream nerve cells.
Signal conversion
Investigate how rods and cones respond to light and how light stimuli in the retina are modelled as electrical impulses and passed on.
Task 1: Label key retinal structures in the illustration.
Task 2: Match each retinal structure to the correct function.
LensCiliary muscleZonular fibres