Cataracts are a common optical condition that affects the lens of a person and can even lead to blindness.
Hence, undergoing Cataract surgery becomes necessary, which includes replacing the lens.
Doctors use an artificial Intraocular Lens (IOL) to replace the affected lens during the surgery.
The types of lenses for Cataract surgery often vary depending on the type of Cataract or the surgeon.
This article will discuss the types of Cataract replacement lenses and the factors that influence their choice.
Types of Lenses for Cataract Surgery
The types of Cataract lenses usually depend on the budget of a person and the severity of their condition.
There are five different types of Cataract surgery lenses that doctors usually suggest.
These types include monofocal IOLs, multifocal IOLs, toric IOLs, accommodating IOLs, and Extended Depth of Focus (EDOF) IOLs.
This section will discuss these above-mentioned types of Intraocular Lenses in detail.
Monofocal IOLs
Source: FabrikaCR_from_Getty_ImagesMonofocal lenses are the most common and traditional choice for Cataract surgery.
According to a study, this particular type of lens is used during the technique of Extracapsular Cataract Extraction.
Monofocal lens offers a person clear vision at a single focal point and helps with distance vision.
However, people with this lens need to use glasses for using computers or reading.
Multifocal IOLs
The American Academy of Ophthalmology (AAO) states that multifocal IOLs have several corrective zones.
These focal zones are like bifocal or trifocal eyeglasses and can help a person’s dependency on glasses.
This feature can help a person develop both their near and distant vision.
However, multifocal IOLs can sometimes cause a person to experience halos or glare in low-light conditions.
Toric IOLs
Toric lenses are usually used to correct Astigmatism, a condition in which the cornea is unevenly curved.
It can help in treating both Cataracts and Astigmatism in a person.
This lens helps correct the refractive error in a person’s vision due to Cataracts and improves their vision.
Accommodating IOLs
The accommodating IOLs can move and change their shape inside the eye it is placed in.
The moving and changing of its shape helps the user to focus on the objects that are present at different distances.
However, not every person might experience the same benefits of this lens.
Extended Depth of Focus (EDOF) IOLs
Extended Depth of Focus (EDOF), also known as Extended Range of Vision, is a new form of lens.
The EDOF lenses change the movement of light through the lens, which can give a better vision at different distances.
It can also help improve one’s intermediate vision, which ranges between Plano and -1.5D.
Factors Influencing Cataract Surgery Lens Selection
Source: rossandhelenThe doctors may suggest choosing the types of Cataract replacement lenses depending on the patient’s daily activities.
A specialized lens should be used if a person has Glaucoma or problems with their retina.
The health and shape of the cornea also influence the type of lens that will be most effective.
The choice of the lens can also depend on the type of Cataracts one is experiencing and their budget.
Conclusion
It is important to know about the different types of lenses for Cataract surgery to get the best results.
The types of Intraocular Lens (IOLs) include multifocal lenses, monofocal lenses, toric, accommodating IOLs, and extended depth of focus lenses.
While some of these lenses help with both near and distant vision, some might only help with focusing on a certain line of vision.
The selection of lenses may depend on the eye condition, budget, and a person’s daily activities.
If you are looking for the perfect choice of lens for your Cataract surgery, it is best to consult your doctor for suitable advice.
Frequently Asked Questions
What is the newest lens for Cataract surgery?
The newest lens for Cataract surgery is the Light-Adjustable Intraocular Lens (LAL). It helps in post-surgery adjustments to improve one’s vision and uses a special light treatment. It offers customized vision correction, which makes it unique.
What are the disadvantages of multifocal lens?
A person with a multifocal lens can face glares or halos when they are in a low-light condition. Some individuals can really face a hard time adjusting to these vision changes.
What are the disadvantages of monofocal lenses?
Monofocal lenses provide clear vision to a person at a single distance, but a person can require glasses for close-up tasks like reading. They don’t help with multiple focal points, which leads to dependency on eyeglasses.
What is a premium Cataract lens?
A premium Cataract lens usually refers to an Intraocular Lens that is not like the traditional monofocal lens. These premium lenses include multifocal, toric, accommodating, or Extended Depth of Focus (EDOF) types.
Which type of lens is best for Cataract surgery?
There is no such ‘best’ lens for Cataract surgery. The best type depends on the personal needs of the individual. While some may only focus on the distant vision, others may focus on both near and distant ones.
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