If we take 'without' distortions to mean 'minimized' distortions and other aberrations, then the answer is probably yes. But the better question is how expensive, large, and complicated will it be? If your lens is absolutely massive, it will be too large to be of any use at all.karl131 said:I have a question for optics experts, is there any possibility to produce a farsightedness/nearsightedness lens in big dimmensions, without distorting the obsjects or anything else you watch through that lens.
I'm not entirely sure what you mean, but I often use binoculars and microscopes without my glasses on by adjusting the eyepiece(s) to compensate- so, yes?karl131 said:Hello guys,
I have a question for optics experts, is there any possibility to produce a farsightedness/nearsightedness lens in big dimmensions, without distorting the obsjects or anything else you watch through that lens.
Thank you!
I mean making a lens in order to cover a window of 120x60 cm. Thank you!Andy Resnick said:I'm not entirely sure what you mean, but I often use binoculars and microscopes without my glasses on by adjusting the eyepiece(s) to compensate- so, yes?
karl131 said:I mean making a lens in order to cover a window of 120x60 cm. Thank you!
berkeman said:How much distortion and chromatic aberration is acceptable? How much correction (in diopters) do you want to provide?
You would need to keep your head in a fixed position. That could reduce the effectiveness compared with regular varifocal glasses.karl131 said:I mean making a lens in order to cover a window of 120x60 cm. Thank you!
You're lucky. I have astigmatism in both eyes and when I try looking through binos without specs, the result is very unsatisfactory. It's the same problem with a telescope eyepiece - but only on one axis.Andy Resnick said:I often use binoculars and microscopes without my glasses on by adjusting the eyepiece(s) to compensate-
Interesting point- I also have astigmatism, maybe it's not as bad as yours so I don't notice it. I can't wear contact lenses anymore, either... :(sophiecentaur said:You're lucky. I have astigmatism in both eyes and when I try looking through binos without specs, the result is very unsatisfactory. It's the same problem with a telescope eyepiece - but only on one axis.
I guess contact lenses would solve the problem but I've tried other people's (disposable) lenses and it's total agony. I must say, conventional glasses have suited me well for nearly seventy years and optical astro doesn't suit my inherent cataracts these days.
My astigmatism is not really too bad but the effect on stars and small writing is just so annoying that it takes the pleasure away if I observe without my specs.Andy Resnick said:Interesting point- I also have astigmatism, maybe it's not as bad as yours so I don't notice it. I can't wear contact lenses anymore, either... :(
A huge farsightedness/nearsightedness lens is a corrective lens used to help individuals with severe farsightedness or nearsightedness see clearly. It is a type of eyeglass lens that is thicker and more curved than a regular lens, and is designed to correct extreme refractive errors.
A huge farsightedness/nearsightedness lens works by bending light rays as they enter the eye, in order to focus them properly on the retina. This helps to correct the refractive error and improve vision for individuals with severe farsightedness or nearsightedness.
A huge farsightedness/nearsightedness lens is typically recommended for individuals with a high degree of farsightedness or nearsightedness, usually beyond -6.00 or +6.00 diopters. These individuals may have difficulty seeing objects at a distance or up close without the use of corrective lenses.
As with any corrective lens, there may be some risks associated with using a huge farsightedness/nearsightedness lens. These may include eye strain, headaches, or discomfort due to the weight and thickness of the lens. It is important to consult with an eye care professional to determine if this type of lens is suitable for your specific needs.
Depending on the severity of the refractive error, there may be alternative options to using a huge farsightedness/nearsightedness lens. These may include contact lenses, LASIK surgery, or other types of corrective lenses such as bifocals or multifocals. It is best to discuss all options with an eye care professional to determine the best course of treatment for your specific needs.