Cataract surgery is one of the most common and successful surgical procedures performed today. Over the past decade, the risk of severe complications has decreased with advances in surgical instruments and techniques. In the procedure, the cataract (cloudy lens) is removed, and a clear intra-ocular (in-the-eye) lens is placed. Rare complications include intra-ocular lens (IOL) dislocation, where the lens moves out of place.
The most common symptom of a dislocated IOL is a change in vision. The degree to which vision is affected will depend on the severity of the dislocation.
- Double vision
- Seeing the edge of the lens implant
IOL dislocation can also lead to other complications such as retinal detachment, bleeding, intra-ocular inflammation, macular edema, glaucoma, and corneal edema.
During most cataract surgery procedures, the IOL is placed inside the capsular bag, a sack-like structure in the eye that previously contained the cloudy lens. In some situations, this extremely thin capsular bag or the fibers that hold it in place rupture and the IOL support is compromised.
Dislocation of the IOL can occur days to years after surgery and can be a result of factors during the original surgery, trauma to the eye, or diseases that affect the stability of the capsular bag.