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Home » Eye Care Services » Your Eye Health » Eye Diseases » Cataracts » Intraocular Lenses (IOLs)

Intraocular Lenses (IOLs)

During cataract surgery, the Intraocular lens (IOL) replaces the clouded natural lens in your eye to provide the function of focusing light onto the retina. IOLs are usually made of plastic and most of them are monofocal lenses to correct for distance vision.With advances in technology, specialized IOLs have and continue to be developed to improve the ease and success of cataract surgery and to improve the patient’s vision. Now, from multifocal IOLs to IOLs that block UV and blue light radiation, patients have greater options available to them.

Presbyopia Correcting IOLs – Multifocal or Accommodating IOLs

Presbyopia is another common condition associated with aging, in which the eyes begin to have difficulty focusing on near objects. This condition makes it hard for people to read small print, which is why many people over 40 keep reading glasses close by.

Similar to bifocal or multifocal reading glasses, accommodating and multifocal IOLs provide vision correction for far and near (reading) vision to provide the patient with clear sight at a range of distances without the need for reading glasses. Although you may be able to do most activities without glasses, there may be situations that require an eyeglass prescription to sharpen your vision.

Multifocal lenses contain multiple lens powers for various viewing distances, while accommodating lenses have one lens power but accommodate or move with your eye as it focuses on objects at a range of distances.

Other Types of IOLs

IOLs that block out ultraviolet (UV) and blue light radiation, which have both proven to be dangerous to your eyes, are also available.

Other premium IOLs exist such as aspheric IOLs which, similar to your real lens, are aspheric in shape and can improve vision quality, especially in low light conditions or toric IOLS which are suitable for correcting astigmatism, nearsightedness or farsightedness. Premium lenses such as these are more costly than standard monofocal IOLs and may not be right for everyone.

Selecting the right IOL for your eyes, lifestyle and vision is a decision that should be made together with a trusted eye doctor. For some people, it may even be an option to place different IOLs in each eye.

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Most people between the ages of 40-45 start to have difficulty seeing up close. This is called Presbyopia and slowly progresses until about the age of 65. This is a normal change due to the lens in the eye hardening and losing flexibility.

Vuity is 1.25% pilocarpine. This is not a new drug. It has been on the market for decades and is used to temporarily shrink the pupil size. It is now being rebranded as a drop that can help improve near vision. How does this work? By shrinking the pupil size, physics tells us this can increase our depth of focus. This drop will not CURE presbyopia. It can improve it while the drop is active and the near blur will return when the dose wears off after approximately 4-6 hours. This drop is recommended for individuals ages 40-55.

Dosage: one drop in each eye once per day. Side effects: possible brown ache or a mild headache. The cost at this time is about $80-90 per month at most pharmacies and insurance does not apply.