What are Implantable Contact Lenses?

Implantable contact lenses, also known as Phakic Intraocular Lenses (IOLs), are lenses that are surgically placed inside the eye to correct refractive errors such as short-sightedness (myopia), long-sightedness (hypermetropia), and astigmatism.

Unlike traditional contact lenses that sit on the surface of the eye, phakic implants are positioned inside the eye, in front of the natural lens.

This type of vision correction can be an effective and reassuring option for individuals who may not be suitable candidates for laser eye surgery, such as LASIK or PRK.

At Moorfields Eye Hospital Dubai or Abu Dhabi, our highly trained refractive surgery specialists will perform a comprehensive eye assessment to determine whether implantable contact lenses are the right option for you. We will take into account your prescription, eye structure, and lifestyle preferences to offer a safe and effective vision correction solution tailored to your needs.

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What are the benefits of Implantable Lenses?

Phakic implants offer several benefits, including:

  • Clear vision: Improved clarity for distance and near vision without needing glasses or contact lenses.
  • Enhanced safety profile: Phakic implants offer a safer alternative for patients with high degrees of near-sightedness. They avoid the risks of removing corneal tissue, which is common in traditional laser vision correction procedures like LASIK or PRK.
  • Reversible procedure: The lens can be removed or replaced, offering flexibility for future eye health changes.
  • Lower risk of dry eye: Phakic lenses do not cause dry eye, a common side effect of laser eye surgery.

How lens implants differ from Refractive Lens Exchange (RLE)

Phakic implants and Refractive Lens Exchange (RLE) aim to correct vision but work in different ways. While RLE involves removing and replacing the natural lens with an artificial one, a technique often recommended for older individuals or those with cataract while phakic implants leave the natural lens intact and place an additional lens in front of it. This makes phakic implants a better choice for younger individuals with good accommodation (the ability to focus on objects at different distances).

What conditions are treated by Implantable Contact Lenses?

A variety of vision conditions are associated and treated with lens implants, including:

  • Myopia (Short-Sightedness): High levels of myopia can be effectively corrected with phakic implants, reducing or eliminating the need for glasses.
  • Hypermetropia (Long-Sightedness): Phakic implants can correct hypermetropia by improving the eye’s ability to focus on close objects.
  • Astigmatism: Phakic implants can correct astigmatism by compensating for the cornea’s irregular shape, resulting in clearer vision at all distances.
  • Presbyopia: Some advanced lenses, such as Extended Depth of Focus (EDOF) lenses, may help reduce dependence on reading glasses by improving focus at multiple distances.

 

What are the different types of implantable contact lenses?

There are several types of phakic implants designed to meet different visual needs:

  • Anterior Implants: These lenses are placed in front of the iris (the coloured part of the eye) and are designed to improve vision for those with severe refractive errors.
  • Posterior Implants: These lenses are positioned behind the iris but in front of the eye’s natural lens, providing excellent visual clarity while preserving the natural structure of the cornea.
  • Extended Depth of Focus (EDOF) Lenses: EDOF lenses offer improved vision at multiple distances, reducing the need for glasses for both near and distance vision. These lenses are particularly useful for individuals with presbyopia or those who need clear vision at varying distances.

Who is suitable candidate for implantable contact lenses?

Phakic implants are suitable for individuals who:

  • Are aged 21 or older, as the eyes should be fully developed before this procedure.
  • Have stable vision and are not eligible for laser eye surgery due to thin corneas or high refractive errors.
  • Are seeking a long-term solution for shortsightedness, farsightedness, or astigmatism.
  • Do not have eye diseases such as glaucoma, cataracts, or severe dry eye.

What happens during the Surgical Procedure?

Phakic implant surgery is typically a quick and minimally invasive procedure.

  • Local anaesthetic eye drops are used to ensure comfort.
  • A small incision is made, through which the lens is gently inserted in front of the natural lens.
  • The procedure usually takes between 15 to 30 minutes per eye.

Most individuals notice an improvement in vision within a day or two.

What is the recovery time after lens implant surgery?

Recovery is usually smooth and relatively quick:

  • Improved vision is often experienced within a few days.
  • Return to normal activities typically occurs within one to two weeks.
  • Some individuals may experience mild discomfort or sensitivity to light immediately after the procedure, but these symptoms usually resolve quickly.

Follow-up appointments will be arranged to ensure proper healing and to monitor your vision progress.

Phakic Implants (Implantable Contact Lenses) Specialists

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