Insertion of an intraocular lens for the treatment of cataracts is the most commonly performed eye surgical procedure.
The procedure can be done under local anesthesia with the patient awake throughout the operation.
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Most IOLs fitted today are fixed monofocal lenses matched to distance vision.
However, other types are available, such as multifocal IOLs which provide the patient with multiple-focused vision at far and reading distance, and adaptive IOLs which provide the patient with limited visual accommodation.
A groundbreaking contact lens therapy has potential to impact the fast-growing issue of myopia (nearsightedness) among children, based on research presented at the American Academy of Optometry's 95th Annual Meeting. Food and Drug Administration today approved the Raindrop Near Vision Inlay, a device implanted in the cornea (the clear, front surface) of one eye to improve near vision in certain patients with presbyopia.
Researchers are testing cutting-edge treatments for people who want to see up close without reading glasses and finding promising results, according to studies presented this week at AAO 2016, the 120th annual meeting of the American Academy of Ophthalmology. Making the most of the low light in the muddy rivers where it swims, the elephant nose fish survives by being able to spot predators amongst the muck with a uniquely shaped retina, the part of the eye that captures light.
However, the concept that refractive error could be corrected by sculpting corneal stromal tissue to change corneal curvature was the brainchild of Jose Ignacio Barraquer Moner in 1948.
A cataract occurs when the lens becomes cloudy and the light becomes scattered or even blocked, causing blurred vision, halos around bright lights, reduced perception of colour and loss of night vision.Most people with short or long sight, and astigmatism.Also because these lenses provide just one focal point on the retina, they provide good vision for those with medical conditions that may have damaged the retina, such as glaucoma.Today, many patients who have undergone cataract surgery want to enjoy good non-spectacle corrected distant vision and nonspectacle corrected near vision with glasses independence.According to the literature, the implantation of an accommodative intraocular lens (AIOLs) can achieve the level of vision after cataract surgery.The most common type of IOL is the pseudophakic IOL.