Cataract surgery: procedure and recovery

A cataract is a condition where the natural lens inside the eye becomes cloudy, leading to blurred vision, light sensitivity, difficulty with night vision, and changes in color perception. Surgery is typically considered when the cataract significantly interferes with daily activities such as reading, driving, or other essential tasks. In some cases, surgery may also be necessary for other medical reasons, such as when the cataract obstructs the examination or treatment of retinal diseases.

Before cataract surgery, a comprehensive evaluation of the eye and vision is performed. This assessment includes visual acuity testing, precise biometric measurements to determine the most suitable intraocular lens, and examination of other eye structures like the retina, cornea, and optic nerve. These tests help assess the expected benefit from surgery and ensure no other factors might affect visual outcomes. The doctor will discuss the desired visual goals after surgery, including the possibility of reducing reliance on glasses.

Preparation for surgery involves several steps. It is important to provide your doctor with a complete list of your current medications, especially blood thinners and current or previous use of medicines for prostate symptoms such as tamsulosin, which can affect the iris during surgery. Do not stop these medicines on your own. You should continue taking your regular medications unless instructed otherwise. On the morning of the surgery, strictly follow the fasting or eating instructions provided by your clinic, as requirements vary depending on the type of anesthesia used. It is important to maintain good hygiene, including showering and washing hair, and to remove any makeup or jewelry. You must arrange for an escort to accompany you home. On the day of surgery, additional checks will be performed, and eye drops will be administered to dilate the pupil of the eye scheduled for surgery.

Cataract surgery is usually performed under local anesthesia, often using eye drops, sometimes combined with mild sedation. During the procedure, the surgeon makes tiny incisions in the eye. Through these openings, the cloudy lens is broken up using ultrasound waves (a technique called phacoemulsification) and then suctioned out. An artificial intraocular lens, custom fitted for each patient, is then implanted and remains permanently in the eye. At the end of the surgery, the eye is typically covered with a patch or a protective shield.

As with any surgical procedure, cataract surgery carries potential risks, although severe complications are relatively rare. These risks include infection, bleeding, corneal swelling, swelling of the retina, retinal detachment, damage to intraocular structures, or the need for further surgical intervention. It is important to remember that while surgery improves visual acuity, it does not guarantee perfect vision without glasses, especially for near vision. In some cases, glasses for reading or distance may still be necessary after surgery.

After surgery, the patient is discharged home with detailed care instructions. It is crucial to use prescribed antibiotic and anti inflammatory eye drops to prevent infection and reduce inflammation. Protecting the operated eye with a plastic shield, especially during sleep, and avoiding rubbing the eye are important. Patients should refrain from strenuous physical activity, heavy lifting, and swimming for several weeks. Hair can be washed carefully by tilting the head backward.

The first follow up appointment is typically scheduled the day after surgery, with subsequent appointments for ongoing monitoring. Visual acuity may gradually improve over several weeks. Permanent glasses, if needed, are usually prescribed about one to two months after surgery. Patients should urgently contact an eye doctor if they experience significant, persistent pain, marked eye redness, swelling, or a sudden and significant decrease in vision, as these could indicate a complication.