Cataract

Cataract is the clouding of the natural lens in the eye, resulting in blurred vision. It is a very common problem, accounting for half the cases of blindness worldwide.

cataract white
A very dense, white cataract in one of my patients

Symptoms

  • blurred vision
  • glare and difficulty seeing especially in bright or dim light conditions
  • fluctuating or increasing spectacle power
  • double images that persist when one eye is covered

Treatment

  • glasses can improve vision in early cataracts
  • surgery is required to remove the cloudy lens and replace it with an intraocular lens implant in established cataracts
  • surgery is recommended once the patient is symptomatic for cataract (no need to wait for the cataract to be very “ripe” before considering surgery)

Cataract Surgery

  • takes approximately 20mins to perform
  • is a day surgery procedure (no need for hospital overnight stay)
  • can be done under topical anaesthesia (no need for injections around the eye)
  • in the hands of an experienced surgeon, is a safe and effective procedure
  • Medisave can be used for part of the surgery costs
  • insurance can be used for part or all of surgery costs (depending on your insurance plan)

Intraocular Lens Implants (IOLs)

  • Monofocal IOLs give good vision for distance but do not correct astigmatism or presbyopia (glasses still required for reading and may be required for good distance vision)
  • Toric IOLs give good distance vision for patients with astigmatism but do not correct for presbyopia (glasses required for reading only)
  • Multifocal IOLs give good vision at all distance ranges (patient is glasses free most or all of the time)
  • IOL selection is individualised to patient’s requirements, and a detailed discussion with Dr Chan is required to determine the best IOL to suit your needs
IOL
The same patient after surgery, with an IOL in the eye