A person with normal vision will become far
sighted with age; his cornea loses the ability to
focus at close range.
But a near sighted person will often retain
his close range vision, he doesn't need reading glasses.
Can we explain this through optics? Or is it really a
ophthalmology issue?
--
Rich
On 2022-03-21 23:44, RichD wrote:
A person with normal vision will become far
sighted with age; his cornea loses the ability to
focus at close range.
But a near sighted person will often retain
his close range vision, he doesn't need reading glasses.
Can we explain this through optics? Or is it really a
ophthalmology issue?
--
Rich
At old age, a person will lose the ability to /change/
focus. If he was near sighted to begin with, he will
stay that way. The condition is called presbyopia.
Jeroen Belleman
Sysop: | Keyop |
---|---|
Location: | Huddersfield, West Yorkshire, UK |
Users: | 308 |
Nodes: | 16 (2 / 14) |
Uptime: | 92:24:45 |
Calls: | 6,923 |
Calls today: | 1 |
Files: | 12,382 |
Messages: | 5,434,104 |