Assignment - Infographics - 128

A Note on What Makes This an Infographic

Drawing three eye cross-sections with labels is a diagram. An infographic explains the story behind each defect: why the eye fails to focus correctly, what a person actually experiences, and how the correction works and why. A reader who has myopia should finish your infographic understanding their own condition.

Objective

Create a comparison infographic in Canva that explains normal vision alongside the two most common eye defects - myopia (short-sightedness) and hyperopia (long-sightedness) - covering cause, optical failure, and correction for each.

Content to Cover

How a Normal Eye Works (the baseline)

Light enters the eye through the cornea, which does most of the bending (refraction). The lens fine-tunes the focus. In a healthy eye, light from a distant object converges exactly on the retina. The brain receives a sharp image.

Include a cross-section diagram of the normal eye showing: cornea, lens, and the point where light converges on the retina.

Myopia (Short-Sightedness)

• What the person experiences: Distant objects are blurry; close objects are clear.
• The optical failure: The eyeball is too long, or the lens is too curved. Light from distant objects converges in front of the retina instead of on it.
• The correction: A concave (diverging) lens spreads light rays slightly before they enter the eye, moving the focal point back onto the retina.
• How common: Myopia affects approximately 30% of the global population. It is increasing, linked to more time spent on screens and less time outdoors.

Include: a cross-section diagram showing light converging in front of the retina, and another showing the concave lens correction.

Hyperopia (Long-Sightedness)

• What the person experiences: Close objects are blurry; distant objects may be clear.
• The optical failure: The eyeball is too short, or the lens is too flat. Light from close objects would converge behind the retina.
• The correction: A convex (converging) lens bends light inward before it enters the eye, moving the focal point forward onto the retina.

Include: a cross-section diagram showing light converging behind the retina, and another showing the convex lens correction.

Optional: Astigmatism (brief mention)

If space allows, add a one-line explanation: Astigmatism is caused by an irregularly shaped cornea or lens, which focuses light unevenly. Corrected with a cylindrical lens.

Design in Canva

• Three columns: Normal Vision, Myopia, Hyperopia.
• Each column: eye cross-section diagram, a brief description of the experience, the optical failure explained, and the correction shown.
• Use a consistent color: green for normal, red for the defect, blue for the correction.
• Keep diagrams simple but accurate - the focal point placement is the key visual information.

Required Elements

• Normal eye as the baseline column.
• Myopia and hyperopia each with: symptom, optical cause, and lens correction.
• Cross-section diagrams for each condition and its correction.
• Title: “Defects of the Eye: Myopia and Hyperopia.”