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Can I convert my astigmatisms lenses into normal lenses? My prescription is right eye D: -2.50 CYL: -0.75 and left eye D: -2.25 CYL: -0.75 Thank you!

I assume you mean to get an otherwise equivalent glasses Rx, but without any astigmatism correction? If so, yes, it is quite easy to determine the "spherical equivalent" Rx. You take ½ the amount of cylinder (astigmatism correction) and add it to the spherical component...

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in Uncategorized by woodhamseyedev 11 Feb 2024

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If a person has an -11 Diopter prescription for glasses, what is that in 20/20 vision… numbers?

People often get confused about measuring vision when they try to compare their glasses prescription with some distance visual acuity measurement on a Snellen type eye chart. It would be nice if there were a corresponding Snellen letter acuity for each diopter of nearsighted correction...

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in Uncategorized by woodhamseyedev 28 Jan 2024

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How has cataract surgery changed in the last 20 years?

Cataract surgery has changed tremendously over the past 20 years or. And it is almost unrecognizable now when compared to how the operation was performed when I started my training over 40 years ago! Cataract surgery was originally an operation to remove the cloudy opacity visible...

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in Uncategorized by woodhamseyedev 28 Jan 2024

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What is the replacement lens that is used in cataract surgery made of?

Any of several transparent synthetic materials that have been tried out over several decades of continued improvement. The very first intraocular lens implants (IOLs) were made of a rigid plastic called PMMA (polymethyl methacrylate), the same material used in fighter plane windshields. Realizing that a smaller...

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in Uncategorized by woodhamseyedev 14 Jan 2024

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Why does the military do PRK eye surgery instead of LASIK?

That was true at one time but not much now. In most branches of the American military LASIK and PRK are both routinely performed on active personnel. There are few LASIK disqualifications of military applicants including for aviation. Furthermore, even most of these are reversed upon application...

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in Uncategorized by woodhamseyedev 14 Jan 2024

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