Cataracts are very common. They cloud the lens of the eye, affecting vision, and are usually a consequence of ageing. Sometimes a cataract may form in younger patients as a result of trauma, intraocular surgery, repeated ocular inflammation, high myopia, diabetes, etc. All cataracts require treatment if they affect vision.
- Blurred and sometimes double vision when a cataract is forming.
- Photophobia (sensitivity to light).
- Better vision on cloudy days than on sunny days.
- Glasses are no longer required for near vision.
- Driving at night becomes more difficult.
- Difficulty reading
- Problems recognising faces
- Prescription glasses need to be changed more frequently.
- After the age of 50, myopia may worsen, or alternatively, eyesight may inexplicably improve. This occurs because the cataract can cause some changes to the lens, creating a magnifying glass effect.
The only way to treat a cataract is through surgery. The procedure is not simple, but as ophthalmologists perform it routinely they can offer very good results. We perform the procedure either with an injection of local anaesthetic or anaesthetic eye drops. We inject the local anaesthetic around the eye, which numbs and paralyses the eye, preventing movement. During the operation we may use some intravenous medication to induce drowsiness and relaxed to prevent any pain.
During the operation the surgeon removes the opaque lens from the eye using a special ultrasound machine (phacoemulsification) and then replaces it with an artificial intraocular lens. Prior to surgery, we measure the eye to determine the specific implant size. In some cases we need to put a small stitch in the eye that we will remove a few days later at the clinic.
We place the intraocular lens (IOL) into a small sac inside the eye which was previously part of the capsule of the original lens. Before the operation, this sac contains the lens and afterwards it will contain the IOL. Over time (sometimes months, sometimes years), the surface of the sac can get cloudy as well, and blur vision again (posterior capsule opacification). This is completely normal and the treatment is simple using a laser in clinic. That treatment is called a YAG laser capsulotomy.
- Normal lens
- Premium lens
- Cataract and glaucoma treatment