Recent studies of children and juveniles of other species show that when their eyeballs are actively growing, frequent exposure to blurred images can permanently alter the shape of the eyeball. The blurring results when objects in the field of view are at various distances and is accentuated in low light conditions. Suggest a possible design for children’s books and suggest reading habits that might reduce the degree of blurring. Did the research by Francis Young, et al, in the 1960s with small indigenous populations in Alaska, confirm the above? Explain.
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Since this is not my area of expertise, I searched Google under the key words "Francis Young vision" to get these possible sources:
http://books.google.com/books?id=sJkrAAAAYAAJ&pg=PA1&lpg=PA1&dq=Francis+Young+vision&source=bl&ots=3BOJU31uTI&sig=KTL7q1-MRf0LfOreKHSQZRdCpc8&hl=en&ei=RUUESuLXK-PemQegkpHUBA&sa=X&oi=book_result&ct=result&resnum=4
http://www.flipkart.com/improve-your-vision-without-glasses/0684814382-y3w3f62g5c
http://www.myopia.org/youngpapers.htm
http://www.naturalvisiontherapy.com/vision_challenge.htm
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps. Thanks for asking.
Design for children's books:
To address the issue of frequent exposure to blurred images affecting the shape of the eyeball, the design for children's books should focus on providing clear and sharp images at appropriate distances. Here are a few possible design suggestions:
1. High contrast illustrations: Use bold and clear illustrations with sharp edges and distinct colors to provide a clear image for the child's eyes to focus on.
2. Appropriate font sizes: Ensure that the text in the book is neither too small nor too large, making it comfortable for the child's eyes to read without straining or squinting.
3. Correct spacing: Keep adequate spacing between the lines of text to enhance readability and prevent crowding of letters.
4. Engaging layouts: Create visually stimulating layouts that encourage active eye movement, such as using different sizes and orientations of images on each page.
5. Adjustable reading distance: Consider incorporating interactive elements in the book that allow the child to adjust the reading distance, which can help in exercising the eye muscles and reducing the risk of permanent alterations in eyeball shape.
Reading habits to reduce blurring:
In addition to design modifications, cultivating healthy reading habits can also help reduce the degree of blurring. Here are a few suggestions:
1. Good lighting: Ensure proper lighting while reading. Avoid reading in dim light as it can strain the eyes. Use appropriate task lighting or natural light to provide sufficient illumination.
2. Moderate reading duration: Encourage children to take regular breaks while reading to allow their eyes to rest and refocus. Prolonged sessions of reading without breaks can lead to eye strain.
3. Eye exercises: Encourage eye exercises, such as focusing on distant objects for a few minutes after reading, rolling the eyes in different directions, or following eye relaxation techniques recommended by optometrists or eye care professionals.
Research by Francis Young, et al:
The research conducted by Francis Young, et al, in the 1960s with small indigenous populations in Alaska did not confirm the specific claim about frequent exposure to blurred images permanently altering the shape of the eyeball. The information you provided in your question does not align with the study by Francis Young, et al. It is important to rely on accurate and relevant sources to ensure the validity of the information.