Cataract surgery restores vision lost to cataracts. Learn about the procedure, types of cataracts, and how the surgery works.
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Cataract surgery removes the eye’s cloudy natural lens and replaces it with a clear artificial lens called an Intraocular Lens (IOL). It is the most common surgery worldwide and restores vision lost due to aging or injury. In a healthy eye, the lens focuses light onto the retina.
When a cataract forms, the lens becomes cloudy, blocking light and causing blurry, dim, or yellowed vision. Surgery is the only effective treatment, as glasses or drops cannot clear the lens. The procedure helps patients regain sharp, clear vision and improve their quality of life.
The word “cataract” has a fascinating history that describes how people used to view the condition. It comes from the Latin word cataracta and the Greek word kataraktes, which mean “waterfall.”
In ancient times, people believed that the white cloudiness seen in the pupil was caused by a corrupt liquid flowing down from the brain, like rushing water, to settle in front of the eye.
They also noted that looking through a dense cataract felt like trying to look through a waterfall. Today, we know it is not a liquid but a breakdown of proteins within the lens itself. However, the name has stuck for thousands of years.
The scope of cataract surgery involves the anterior (front) segment of the eye. It is classified as a refractive procedure because it changes how light enters the eye.
At LIV Hospital, the scope extends beyond just removing the cloudiness. We view cataract surgery as a chance to upgrade your vision. By using Premium Smart IOLs, we can often eliminate the need for glasses.
There are many myths about this surgery. It is important to clarify what cataract surgery is NOT:
While the surgical method is generally the same, the types of cataracts vary. The type often determines how quickly vision is lost and the difficulty of the surgery.
This is the most common type associated with aging.
Some babies are born with cataracts due to genetics or infections during pregnancy. This requires urgent surgery to prevent Amblyopia (lazy eye) and permanent blindness.
Cataract surgery holds a critical position in global healthcare. According to the World Health Organization (WHO), cataracts are the leading cause of blindness worldwide. The importance of this surgery lies in its ability to reverse this blindness. It is one of the most cost-effective and successful health interventions in existence.
Beyond restoring sight, it is vital for safety. Elderly patients with untreated cataracts are at a much higher risk for hip fractures from falls. They are also more likely to suffer from depression and social isolation. By restoring vision, the surgery restores independence and quality of life.
Cataract surgery is performed exclusively by an Ophthalmologist. This is a medical doctor (MD) who specializes in eye and vision care. Specifically, they are eye surgeons.
At LIV Hospital, our cataract specialists undergo advanced fellowship training. They are experts not just in removing the lens, but in the complex calculations required to choose the perfect artificial lens for your eye. They work with optometrists, who often handle the pre-operative measurements and post-operative glasses prescriptions.
Cataract surgery falls under the subspecialty of “Anterior Segment Surgery.” This field focuses on the cornea, iris, and lens.
While the surgery is localized to the eye, it affects the neurological system. The eye captures the image, but the brain processes it. A dense cataract deprives the brain of clear visual stimulation. In elderly patients, removing cataracts has been shown to slow cognitive decline. When the brain receives clear input again, cognitive function often improves. This highlights that cataract surgery is not just about the eye; it is about keeping the brain active and engaged with the world.
Send us all your questions or requests, and our expert team will assist you.
Cataract surgery removes a cloudy natural lens and replaces it with a clear artificial lens (IOL). An Ophthalmologist measures the eye, selects the lens, removes the cataract, and ensures proper healing.
It primarily treats cataracts and can also correct refractive errors like nearsightedness, farsightedness, astigmatism, and presbyopia.
The main types are Nuclear Sclerotic, Cortical, Posterior Subcapsular, and Congenital.
See a specialist if vision interferes with daily life, such as trouble driving at night, reading, or noticing faded colors.
LASIK reshapes the cornea but keeps the natural lens, while cataract surgery removes and replaces the lens. LASIK cannot treat cataracts.
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