Side effects and complications

Cataract surgery is one of the safest and most frequently performed procedures in medicine. Like any surgical procedure, it nevertheless carries a degree of risk. Complications are rare and, in most cases, are treated well when identified in time. Informing you clearly is part of trustworthy care.

In the first few days, a slightly red eye, a gritty sensation, slight watering or still-fluctuating vision are usual and fade with healing. These are not complications.

• Corneal edema: the cornea may be temporarily thickened, with hazy vision in the first few days, which usually resolves.
• Macular edema: swelling of the central retina (Irvine-Gass syndrome) can occur in 1 to 2% of cases and is treated with anti-inflammatory eye drops.
• Raised eye pressure: usually temporary, monitored at check-ups.
• Capsular rupture: an intraoperative event that the surgeon manages during the procedure, sometimes by adapting the technique.

• Infection (endophthalmitis): very rare (fewer than 1 case in 1,000), but serious: it requires emergency treatment. Hence the importance of strict eye-drop hygiene and seeking care without delay in case of pain or a drop in vision.
• Retinal detachment: rare, slightly more frequent in highly myopic people; it is treated surgically and makes it worth knowing the warning signs (flashes, floaters, a shadow in the field of vision).

It is not a “relapse” of the cataract. Over time — a few months to a few years after surgery — the envelope that supports the implant (the posterior capsule) may become cloudy, and vision becomes hazy again. This is common and not serious.

The treatment is simple and quick: YAG laser capsulotomy. In a few minutes, at the practice, the laser opens the clouded area behind the implant. It is painless, outpatient, without incision, and clear vision generally returns very quickly.

Rigorous preoperative selection, strict asepsis and mastery of phacoemulsification explain why serious complications stay rare. Following the eye-drop regimen and check-ups after surgery further reduces this risk. It is the combination of these precautions that makes the surgery so reliable.

In the operated eye, significant pain, marked redness or a drop in vision should prompt emergency care. Caught in time, most problems are resolved well.