Restoring Optical Power & the AcrySof Toric Intraocular Lens (TIOL)
Until now, the most commonly manufactured IOL implants were spherical monofocal lenses, which offer a fixed-range of focus and correct myopia and hyperopia only. This means, after lens extraction and spherical monofocal lens insertion, a patient is reliant upon spectacles to fine-tune some ranges of focus (i.e., near, intermediate and/or distance vision — depending on patient preference) and correct corneal astigmatism, if more than a small degree is present.
Using principles similar to toric contact lenses, Alcon Laboratories has developed the AcrySof Toric intraocular lens to provide individuals with distance vision and astigmatic correction after natural lens extraction surgery. This type of IOL enables many patients with corneal astigmatism to function adequately without spectacle dependence for distance vision.
Basic Information About the AcrySof TOIL
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It has a toric back-surface design intended to neutralize corneal astigmatism.
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It can provide sharper vision than a spherical IOL and may reduce dependency on corrective lenses.
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It is the same hydrophobic acrylic lens material as the the original AcrySof intraocular lens, which has been inserted in over 16 million human eyes since 1991. This material provides the surgeon with a high level of rotational stability, which is important for accurate positioning of the implant lens during surgery.
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It offers a fixed-range of focus — providing near, intermediate or distance vision — depending on patient preference. After lens extraction and AcrySof TIOL
insertion, patients require spectacles to fine-tune tasks at other distances.
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