As with any surgical procedure, there are some risks associated with phakic lenses. These include:

  • Loss of vision that cannot be corrected with glasses, contact lenses, or another surgery. The amount of vision loss may be severe.
  • Development of debilitating visual symptoms such as glare, halos, double vision, and/or decreased vision in situations of low-level lighting that can cause difficulty with performing tasks, such as driving, particularly at night or under foggy conditions.
  • Additional eye surgery to reposition, replace, or remove the phakic lens.
  • Under-treatment or over-treatment. Some patients do not achieve 20/20 vision after surgery. Because of the difficulties with determining exactly what power lens is necessary, the power of the implanted phakic lens may be too strong or too weak. This means that some patients may still need glasses or contact lenses to perform at least some tasks.
  • Increased intraocular pressure, which may require surgery or medication to control. Long-term treatment with glaucoma medications may be necessary. If the pressure is too high for too long, the patient may lose vision.
  • Cloudy cornea.
  • Cataract, which is a clouding of the natural lens.
  • Retinal detachment.
  • Infection, bleeding, severe inflammation, pain, redness, or decreased vision.