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Presbyopia

presbyopia

(Science: ophthalmology) A defect of vision consequent upon advancing age.

It is due to rigidity of the crystalline lens, which produce difficulty of accommodation and recession of the near point of vision, so that objects very near the eyes can not be seen distinctly without the use of convex glasses. Called also presbytia.


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Origins of life

... dam glasses I can read that, :x I had three pair somewhere....I an barely see to write this. This is what you (young uns)have to look forward to :presbyopia :evil: :evil: (hope I spelled that correct) so I printed it out and will try to read it between work. talk to ya later :) Lynne

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by Linn
Fri Apr 07, 2006 11:14 am
 
Forum: Evolution
Topic: Origins of life
Replies: 327
Views: 177264

presbyopia

... term if you think of the religious grouping of presbyterianism, (meaning a church, although led by a minister, largely organized by elders). Thus, presbyopia - a condition of the eyes usually observed in 'elders', which, in this case, can occur from the 40's onwards, where the person may initially ...

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by Cilla
Wed Mar 29, 2006 5:30 pm
 
Forum: Human Biology
Topic: pres myopia???
Replies: 4
Views: 3762

pres myopia???

Myopia is nearsightedness,hyperopia is farsightedness. I think you meant presbyopia, a condition that happens in the elderly. There are more terms like amblyopia (lazy eyes), strabismus (crossed eyed), astigmatism (asymmetrical curved cornea) etc......

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by atypical10
Fri Mar 24, 2006 2:03 pm
 
Forum: Human Biology
Topic: pres myopia???
Replies: 4
Views: 3762

pres myopia???

Are you talking about presbyopia? I don't know the other. If you are talking about presbyopia, it is usually seen in old ages. It is the inability of focusing to the objects near you.

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by Poison
Wed Mar 01, 2006 6:11 pm
 
Forum: Human Biology
Topic: pres myopia???
Replies: 4
Views: 3762

nearest sight

i know~^^ You have said that presbyopia because the lens is less elastic but... 1.)can it caused by weaken of muscle which control the thickness of len ??? And although we can have myopia and presbyopia at the same time 2.) But.... can ...

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by hoiki426
Tue Jan 24, 2006 10:38 am
 
Forum: Human Biology
Topic: nearest sight
Replies: 9
Views: 3228
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