What is intraocular lens dislocation?
Intraocular lens (IOL) dislocation is a very rare condition that affects patients who have undergone cataract surgery and consists of the displacement of the implanted lens towards the vitreous cavity of the eye. On other occasions, the lens becomes decentred from the visual axis but does not fall into the vitreous cavity (subluxation).
Displacement of the intraocular lens causes changes to vision and, if it falls into the vitreous cavity, it can produce traction due to the eye’s own movement, resulting in retinal detachment and/or vitreous haemorrhage.
What causes it?
It is estimated that between 0.05% and 3% of patients who have undergone cataract surgery will suffer from a spontaneous dislocation of the IOL. Some studies show that its incidence is higher 5 years after surgery.
Sufferers usually have the following disorders or previous procedures:
How can it be prevented?
IOL dislocation cannot be prevented as it occurs spontaneously. It is important, however, for patients who have undergone cataract surgery to have regular check-ups and urgently visit the ophthalmologist if they notice any loss of vision.
The most characteristic symptom of IOL dislocation is loss of vision, although some patients also complain of blurred or unfocused vision. It does not cause pain.
If the lens is in the vitreous cavity, treatment consists of performing a vitrectomy in order to remove it and implant another or reposition it. In cases where the IOL has not fallen into the vitreous cavity, the surgeon can simply reposition it without the need to perform a vitrectomy.
Angiography is a technique used to delineate retinal or choroidal cases. Different contrasts are used, usually sodium fluorescein or indocyanine green. The scan is also useful for the diagnosis of other retinal diseases, such as pigment epithelium. In general, angiography is used to study many retinal diseases and their diagnosis.
Indocyanine green angiography is a technique used in some cases of AMD and serves to define the neovessels and, occasionally, to diagnose other diseases. Fluorescein angiography is the standard technique for studying blood vessel diseases and the retina in general.
It is a diagnostic technique to determine pathological and abnormal structures in the blood vessels and the different layers of the retina. It can be used in cases of macular degeneration, diabetic retinopathy, vasculopathy and many other macular disorders.
It is not counterproductive for any eye treatment.
If a patient who has been operated on for cataracts or other intraocular processes suffers a severe loss of vision with noticeable eye redness and pain, he or she must go and see an ophthalmologist urgently and without delay, as the emergency could threaten the vision of the eye.
IMO Institute of Ocular Microsurgery
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41º 24’ 38” N – 02º 07’ 29” E
Exit 7 of the Ronda de Dalt (mountain side). The clinic has a car park with more than 200 parking spaces.
Autobus H2: Rotonda de Bellesguard, parada 1540
Autobus 196: Josep Maria Lladó-Bellesguard, parada 3191
Autobuses H2, 123, 196: Ronda de Dalt – Bellesguard, parada 0071