Common Defects of the Eye Flashcards

1️⃣ Familiarise yourself with the flashcards:

  • Look through all the flashcards to see what’s on both sides.
  • Make sure you understand the information on each card. If something’s unclear, click the link to the revision notes at the bottom of the page for more details.

2️⃣ Test yourself:

  • Look at the question or prompt on each card and try to remember the answer before flipping it over.
  • Check the answer and make a note of any cards you find challenging and need to go over more.

3️⃣ Consistently Review and Practice:

  • Use spaced repetition: spend more time on the cards you struggle with and go over them more often.
  • Regularly review all the flashcards to help you better understand and retain the information over time.

Note: We may include questions that have multiple correct answers. It’s useful to remember specific examples to understand these concepts better.

What is a cataract?

A cataract is the clouding of the eye’s natural lens, which can only be effectively treated by replacing the cloudy lens with an artificial lens.

What is myopia and what are its causes?

Myopia (short-sightedness) is when the image focuses in front of the retina.

It is caused by an elongated eyeball or a too-curved cornea, leading to distant objects appearing blurry.

How can myopia be corrected?

Myopia can be corrected with concave lenses (glasses), which refract the light rays so they focus on the retina.

What is hyperopia and what are its causes?

Hyperopia (long-sightedness) is when the image focuses behind the retina.

It is caused by a short eyeball or a not curved enough cornea, leading to nearby objects appearing blurry.

How can hyperopia be corrected?

Hyperopia can be corrected with convex lenses (glasses), which refract the light rays so they focus on the retina.

What are some alternative treatments for myopia and hyperopia besides glasses?

Alternatives to glasses include hard and soft contact lenses, laser surgery to reshape the cornea, and lens replacement surgery with an artificial lens.

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