Can Implantable Contact Lenses Correct Astigmatism? Risks and More - Ophthalmology

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Implantable contact lenses (ICLs) are a viable option for correcting refractive errors, including myopia (nearsightedness) and astigmatism. For individuals with high myopia, such as your friend with approximately -1200 diopters, ICLs can be particularly beneficial, especially when corneal thickness is insufficient for laser refractive surgery like LASIK.

Can ICLs Correct Astigmatism?
Yes, implantable contact lenses can correct astigmatism. There are specific types of ICLs designed to address astigmatism, known as toric ICLs. These lenses have different powers in different meridians, allowing them to compensate for the uneven curvature of the cornea that characterizes astigmatism. When considering ICLs for astigmatism correction, it is crucial to have a thorough preoperative assessment, including corneal topography, to determine the appropriate lens type and power.


Risks and Complications of ICLs
While ICLs are generally safe and effective, like any surgical procedure, they come with potential risks and complications. Some of the common risks associated with ICL implantation include:
1. Infection: As with any surgical procedure, there is a risk of infection, which can lead to serious complications if not treated promptly.

2. Intraocular Pressure (IOP) Increase: ICLs can sometimes lead to elevated intraocular pressure, which may result in glaucoma if not monitored and managed appropriately.

3. Cataract Formation: There is a potential risk of cataract development after ICL implantation, particularly in older patients or those with pre-existing risk factors.

4. Lens Dislocation: The lens may shift from its intended position, which can affect vision and may require surgical repositioning.

5. Visual Disturbances: Some patients may experience glare, halos, or other visual disturbances, especially in low-light conditions.

6. Endothelial Cell Loss: The procedure may affect the corneal endothelial cells, which are crucial for maintaining corneal clarity. Significant loss of these cells can lead to corneal edema and vision problems.


Choosing the Right Facility
In Taiwan, several reputable hospitals and eye clinics specialize in refractive surgery, including ICL implantation. When looking for a facility, consider the following:
- Experience and Volume: Look for hospitals with a high volume of ICL procedures, as this often correlates with better outcomes and fewer complications.
- Surgeon Expertise: Research the qualifications and experience of the surgeons performing the procedure. A surgeon with extensive experience in ICL implantation is preferable.

- Patient Reviews and Outcomes: Seek out patient testimonials and reviews to gauge satisfaction and outcomes from previous patients.

- Comprehensive Preoperative Assessment: Ensure that the facility conducts thorough preoperative evaluations, including detailed measurements of the eye, to determine the best approach for your friend's specific needs.

In conclusion, implantable contact lenses can effectively correct both myopia and astigmatism, making them a suitable option for individuals with high refractive errors. However, it is essential to weigh the benefits against the potential risks and to choose a reputable facility with experienced surgeons. Your friend should consult with an ophthalmologist specializing in refractive surgery to discuss their options and ensure they receive personalized care tailored to their specific condition.