Cataract Treatment

Cataract is the deterioration in the structure of the natural lens of the eye, thereby becoming blurred by losing its transparency. Generally it occurs due to aging after the age of 55-60.

Figure 1. Phacoemulsification and intraocular lens implantation.

Cataract surgery is the operation to remove this lens which has lost its transparency and replace it with an artificial one. It is a one-day surgical operation, and patients are generally discharged from hospital a few hours after the surgery and they can go back to their daily lives in a short while. FACO method (known as laser surgery by the general public) is mostly used today for cataract surgery. In this method, a small cut 2-3 mm in size is made on the cornea. With the help of the FACO device, vibrations are created in this cut and the blurred cataract material inside the lens capsule is broken into pieces using sound waves that liquidize the tissues and these broken pieces are cleared out by the device and replaced by an artificial lens inside the original capsule. 

The most important complications arising from surgery are cataract material falling to the back of the eye (into the vitreous) as a result of capsule tear during the surgery, damage to the iris tissue, and intraocular infections which are observed very rarely after surgery. Thanks to the advanced technology today, complications both during and after the surgery are minimized by an experienced surgeon and successful results are achieved most of the time. Antibiotic and steroid drops should be used for a certain time and hygiene rules should be observed to protect eye health after surgery.

Figure 2. Preoperatve (left) and postoperative (right) biomicroscopic appearance of a patient operated with the diagnosis of with mature cataract. Rings on the multifocal intraocular lens can be distinguished (right).

Should I have a multifocal intraocular lens implant for my cataract surgery?

This is a common question asked by many patients.

In routine cataract surgery, we generally implant a mono-focal intraocular lens. This means that the lens implant is fixed to focus on one distance. In general, most patients prefer to be fixed for the distance. This helps them focus on the environment around them – this is what we concentrate on most of the time.

Patients with mono-focal intraocular lens implants fixed for distance vision are then required to use additional reading glasses to focus on near objects such as books or smartphones.

Multifocal intraocular lenses were designed to go one better than mono-focal intraocular lenses. Their design allows patients to see at multiple distances and theoretically allows the patient to be spectacle free after cataract surgery.

That means this type of intraocular lens can focus at distance and near. This enables patients to see the world around them in focus and also be able to see writing in a book or on a mobile phone. The option of multifocal intraocular lens implantation for cataract surgery is available at our hospital.