Contact lenses ...my question is....

India
December 17, 2006 9:40am CST
Tell me how is the bifocal mode is created in this ? In normal glasses which we wear, we have those called bifocal lenses( short & long sight)..which obviously require diffrent focal length glasses ..integrated .Now how is this achieved in the contact lens ? Considering the fact that the contact lens has to to match with the curvature of the eye pupil ?
5 responses
@ossie16d (11826)
• Australia
22 Dec 06
This was recently explained to me by the optometrist. She said that if I choose to have contact lenses, then they would make one lens which is for the distance and the other for things that are near. Apparently the eyes work together so having them like this doesn't do any harm, as the lens would be made for the weaker eye seeing in the distance and the other lens would be for the eye that is weaker seeing things close up. At least that is my understanding of what she said. LOL
• India
22 Dec 06
Hello..this sounds some what better..fine..that takes care of individual eyes..different lenses..fantastic..still the question remains how distant & short vision are adjusted in the same lens ?
@ossie16d (11826)
• Australia
25 Dec 06
I think that they would be graduated as are bi-focal glasses but with the emphasis on the distance in one lens and for things that are near in the other.
@perugu (5281)
• India
17 Dec 06
hi,frankly speaking i don't know..but,one thing that it is all the beauty of science,given by scientists...
• India
18 Dec 06
yeah..agreed...thanks
@msqtech (15226)
• United States
18 Dec 06
it is all about optics and focal points
@ossie16d (11826)
• Australia
30 Dec 06
Can you give us any idea of the answer to this one because I have no idea other than what I first responded with. :)
@utsadetti (4589)
• United States
25 Dec 06
i don't have any idea, lol.
@msqtech (15226)
• United States
18 Dec 06
just like a regular lens that is made just smaller for the focal point