5.2.15

Eye Defects

Test yourself

Eye Defects

Both myopia and hyperopia can be treated using glasses fitted with lenses that refract light rays to allow the image to form on the retina. Contact lenses and laser eye surgery can also correct these issues.

Illustrative background for Myopia (short-sightedness)Illustrative background for Myopia (short-sightedness) ?? "content

Myopia (short-sightedness)

  • Myopia happens when rays of light focus in front of the retina.
Illustrative background for Hyperopia (long-sightedness)Illustrative background for Hyperopia (long-sightedness) ?? "content

Hyperopia (long-sightedness)

  • Hyperopia happens when rays of light focus behind the retina.

Jump to other topics

1Cell Biology

1.1What's in Cells?

1.2Cell Division

1.3Transport in Cells

2Organisation

2.1Principles of Organisation

2.2Enzymes

2.3Circulatory System

2.4Non-Communicable Diseases

2.5Plant Tissues, Organs & Systems

3Infection & Response

4Bioenergetics

5Homeostasis & Response

5.1Homeostasis

5.2The Human Nervous System

5.3Hormonal Coordination in Humans

5.4Plant Hormones

6Inheritance, Variation & Evolution

6.1Reproduction

6.2Variation & Evolution

6.3Genetics & Evolution

6.4Classification

7Ecology

Unlock your full potential with Seneca Premium

  • Unlimited access to 10,000+ open-ended exam questions

  • Mini-mock exams based on your study history

  • Unlock 800+ premium courses & e-books

Get started with Seneca Premium