What is a cataract?

The eye’s natural lens sits behind the iris and focuses light on the retina. A cataract is a clouding of the lens inside the eye which leads to a decrease in vision. Cataracts are a normal part of the aging process. They can also be caused by UV light exposure, some medications, trauma, genetics, diabetes and other medical conditions.


  • Blurry vision
  • Difficulty appreciating colors
  • Glare and haloes in bright lights
  • Decreased night vision
  • Double vision

Cataract Surgery

To remove a cataract, a small incision is made into the cornea. An ultrasonic probe is used to break up the cataract and remove the fragments. The cloudy lens is then replaced with an artificial lens.

At Pacific Vision Institute of Hawaii, Dr. Tham is proud to be able to provide you with Laser Refractive Cataract Surgery with the Catalys Precision Laser System the next evolution in cataract surgery.  The Laser  perform many key steps of the procedure that used to perform with handheld instruments.

If you think that your vision may be affected by cataracts, please call us to schedule an appointment.