The conversation between human and AI assistant.
How does the human eye focus on on near and far objects?
That's interesting. What happens if someone has difficulty focusing on near or far objects?
A common condition that affects near vision is presbyopia, which occurs when the lens loses its elasticity with age. As a result, individuals find it difficult to focus on nearby objects, and reading glasses or bifocals may be needed. On the other hand, people with myopia or nearsightedness have trouble seeing distant objects because the image is focused in front of the retina instead of on it. This can be corrected with glasses or contact lenses that have a negative power to help move the focal point back onto the retina.