During, Immediately After, and Within 24 Hours of Surgery
Bleeding. Bleeding inside the eye during cataract surgery is extremely rare, because the incision is placed on the edge of the cornea, which contains no blood vessels. When it does occur, it is most likely to occur on the surface of the eye. In this case, the surgeon will usually cauterize the bleeding area, and the bleeding stops.
Bruising or black eye. If your doctor used an injection to numb your eye, it is possible that you may experience some bruising around your eye. This is temporary and will go away on its own.
Incision leak. Sometimes a small leak in the incision in the cornea can occur. Such a leak increases the chances of infection, and your doctor may apply a contact lens or pressure bandage over your eye to help decrease the chances of infection. In some cases, the incision must be closed with a stitch.
Infection or endophthalmitis. Developing an infection after cataract surgery is extremely rare, occurring only once in several thousand surgeries.(1) Most cataract surgeons administer antibiotic drops before, during, and after surgery to further minimize the risk of infection. Endophthalmitis, an inflammation of the eye triggered by infection, is also very rare and more common in people with conditions that compromise their immune systems, such as diabetes.
Inflammation. Swelling inside the eye that is unrelated to infection is usually minor and can be easily treated with anti-inflammatory drops after surgery.
Glaucoma. An extremely small number of cataract surgery patients develop secondary glaucoma after cataract surgery. Secondary glaucoma is usually temporary and can develop when inflammation or bleeding occurs during the surgery. In most cases, glaucoma medications can be used to help control the increased intraocular pressure, but sometimes, laser or other surgery is required.
Pronounced astigmatism. Sometimes swelling of the cornea or tight stitches (if stitches are used) can distort the shape of the cornea, causing astigmatism. Swelling will reduce during healing, and the astigmatism will generally go away on its own. Or if stitches were used, once they are removed, the cornea will usually relax back to its natural shape.
Retinal detachment. If you are extremely nearsighted, you may be more prone to retinal detachment during cataract or any other eye surgery. Symptoms of retinal detachment include flashing lights, new floaters, gradual shading of vision as though a curtain were being drawn, and quick detachment of your sharp, central vision. If you experience any of these symptoms following cataract surgery, call your doctor immediately.
Tearing of the posterior capsule. During cataract surgery, the natural lens is removed from the posterior capsule and replaced with an artificial IOL. During this process sometimes this capsule can tear. When this happens, the physician will perform a vitrectomy, a procedure to remove and repair the vitreous body that has leaked into the capsular bag, and seal it off.
One Week to One Month After
Decentered intraocular lens. Rarely, the IOL placed in the eye can become displaced. Symptoms of a decentered IOL can include blurred vision, glare, double vision, or fluctuating vision (when the eye sees the edge of the IOL, causing focused and unfocused images). This is sometimes due to torn zonules during surgery or through an accident involving the eye. When an IOL becomes displaced, your doctor will either reposition the lens or remove and replace it with another.
Two to Four Months After
Cystoid macular edema. For as much as three months after cataract surgery, or as early as a few weeks, the tissues of the macula may swell. If this happens, your central vision will be blurry, and your doctor will most likely give you a non-steroidal anti-inflammatory drug.
Secondary cataract. This is by far the most common complication of cataract surgery, occurring after about 30 percent of surgeries.(1) When you develop a secondary cataract, or posterior capsule opacification, cells have grown under the lens and the posterior capsule holding the IOL has become cloudy, blurring your vision. Your doctor will then perform a YAG (yttrium-aluminum-garnet) laser capsulotomy, using the laser to create a small hole in the membrane to allow light through. This is a painless outpatient procedure that your doctor will perform quickly in office.
Types of Sugery : -Conventional extracapsular surgery-Pharcoemulsification
Source :http://www.cataractsurgery.com/life-after-cataracts/possible-complications.asp
0 comments:
Post a Comment