Cataract surgery is a regular safe outpatient procedure done by an ophthalmologist to treat cataracts. The normal lens of the eye is clear and allows focusing of light on the retina, but a cataract is a condition when the proteins in the lens clump together and the lens gets cloudy. This cloudiness can impair vision which may appear as blurred or hazy pictures, colors that seem drained of color, sensitivity to light being increased (In particular at night), double vision, and problems during the performance of daily tasks such as reading, driving, or TV watching. You cannot change a cataract with eye drops or medications. The only way is to operate your eyes that is a cataract and you regain clear eyesight. Such operation is recommended when the cataracts interfere with your day-to-day activities or prevent you from obtaining treatment and monitoring of other eye problems. Cataracts in senior adults are the most frequent ones, but they may also appear in children, from an injury, medical ailments, or medicine intake.
During the procedure, the doctor cuts out the cloudy part of the lens and replaces it with a new plastic one, known as an intraocular lens (IOL). After being implanted in the eye, the lens stays permanently and allows your vision to get focused. IOLs are available in different styles: monofocal lenses allow only one distance to be in focus with them, multifocal or accommodating lenses help reduce the need for glasses for both short and long-range vision, and toric lenses are used to correct astigmatism. Many cataract removal techniques involve a procedure known as phacoemulsification. First of all, the eye is anaesthetized with drops or a needle shot. The doctor opens up the pupil.
Beside these, the patient might be given a sedative so that he or she can relax. A cornea incision is a small cut, which the surgeon makes. The natural lens is first loosened by breaking its capsule with specialized equipment. The cloudy lens is then broken down using ultrasonic waves from a probe and suctioned out gently. In certain cases, a femtosecond laser can be used as an added method to the main surgical technique. Laser-assisted cataract surgery helps in making more accurate incisions, for instance, laser is also used as means to soften up a cataract before removal.
In some cases, such as a denser cataract, the surgeon will perform extracapsular extraction with the help of a bigger cut to get the entire lens at once. The new lens (IOL) is placed inside the empty lens capsule by unfolding and it remains fixed there. Normally, the surgeon will spend around 15 minutes or more for an eye, and very rarely the operation takes stitches since the wound will typically close itself. The patient is conscious during the entire operation, though only limited discomfort is experienced, which is typical. Most of the time they only see the lights or the colors.
Following surgery, patients are observed in a recovery area for a short period of time and then go home the same day. Vision usually begins to improve in a few days but the eye takes 4-8 weeks to be fully healed and stable. Patients are given eye drops to prevent infection and to reduce inflammation. They are advised not to rub the eye heavy lifting or strenuous activity for a period of time. A protective shield may be worn, especially at night. Follow-up visits with an ophthalmologist monitor healing and look for problems. Sometimes, months or years later, the lens capsule can become cloudy again (posterior capsule opacification). This is easily treated with a quick, painless laser procedure.
Cataract surgery is very successful. About 90 to 97 percent of patients have better vision. Advantages include better vision, less glare, brighter colors, and often less dependence on eyeglasses, depending on the type of IOL chosen. Like any surgery there are some small risks of infection swelling bleeding retinal detachment or the IOL shifting position but serious complications are uncommon. “In general, it remains one of the safest and most common procedures worldwide, with great quality-of-life improvements for those suffering from cataracts.”