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What actually happens to an IOL in the first few hours and days after cataract surgery? Do they bounce around before settling in the 'capsular bag'?

An intraocular lens (IOL) or "lens implant" is needed to replace the aging and cloudy natural lens located immediately behind the pupil. Being very flexible and transparent, the IOL is rolled up in a specialized syringe and injected into the now empty "capsule" which the...

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Do younger people have better vision than older people?

Yes, usually that is always the case. Evolutionarily, our bodies are not really "built" to survive and function optimally much past age 40. But since modern medicine and technology often provide us with a lifespan almost twice that, we have to deal with our various...

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What is the best method of LASIK for a myopic patient with the power of -10?

All keratorefractive surgery for nearsightedness works by reshaping and thinning the cornea of the eye (not the lens). These include LASIK, SMILE, PRK, epi-LASIK, PRK, etc. None of these is inherently "better," "safer," or more accurate than the others. There may be...

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If monofocal cataract surgery has been performed on the first (dominant) eye with a +12.0 dioptres IOL implanted, what should be the dioptres for the other eye, for an overall optimum refractive outcome?

Your question does not, unfortunately, supply enough information for a meaningful response. It is certainly understandable to want to think of the eye as a "camera" that uses a lens of a particular power (prescription) as in glasses or contact lenses, to achieve an...

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What does my eye prescription say about my vision? The doctor was not very helpful. OD -7.50, OS -700. OD CYL +2.75, OS CYL +2.00. OD & OS AXIS 090.

One's vision and one's glasses prescription have only a loose correlation. Of course, the higher the Rx number means in general the worse the distance vision. But there isn't any sort of "-3.00 Diopters = 20/400" and "-4.00 D. = 20/800" visual acuity relationship. Once...

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How do we control our eyes to not focus on distractions?

It may be difficult to imagine, but what we see "out there" is not a passive input of data onto some sort of neural screen in our brain. Rather, what we see is our "projection" onto the world out there of a model we have learned for interpreting that visual...

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Prior to cataract surgery, my near-sighted vision was near perfect; I could read without glasses. The surgeon implanted lenses with the same power as my natural lens. But one eye is slightly off by -.50 to -.75. Should I have the lens replaced?

Probably not. There are really two issues here: 1) Why is it, to your surprise, you now need reading glasses and you didn't before your cataract surgery? 2) How easy and safe is it to remove and replace an intraocular lens (IOL)? Nearsighted (myopic) people enjoy...

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If I have been told I have beginning cataracts, what signs should I look for to know if it is getting worse?

Cataract development is almost always quite slow and gradual. Typically one eye will get worse sooner than the fellow eye. Most people do not notice any sort of sudden change in their vision (although that is not impossible). The very earliest symptom of cataract...

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