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(a) Explain how problems with the structure and function of the eye can cause a named visual disorder - HSC - SSCE Biology - Question 24 - 2023 - Paper 1
Question 24
(a) Explain how problems with the structure and function of the eye can cause a named visual disorder. The lens of the eye refracts light from the environment onto ... show full transcript
Worked Solution & Example Answer:(a) Explain how problems with the structure and function of the eye can cause a named visual disorder - HSC - SSCE Biology - Question 24 - 2023 - Paper 1
Step 1
Explain how problems with the structure and function of the eye can cause a named visual disorder.
Answer
The lens of the eye plays a crucial role in refracting light toward the retina. A common visual disorder, cataracts, arises when the lens becomes clouded, obstructing the light that reaches the retina. This obstruction leads to blurred vision as the clarity of the light is compromised, illustrating how structural issues in the eye can directly affect visual clarity.
Step 2
Describe ONE technology that is used to assist with the effects of a named visual disorder.
Answer
One effective technology to assist individuals suffering from visual disorders such as myopia is laser surgery, specifically LASIK. LASIK reshapes the cornea to improve how light enters the eye, correcting the refraction errors that lead to blurred vision. The procedure involves creating a flap in the cornea, using it to expose the underlying tissue, and then applying a laser to reshape the cornea. After the reshaping, the flap is repositioned, promoting faster healing and improved vision.