What is Cataract?
Cataract refers to clouding of the lens. A clouding lens obstructs the passage of light rays into the eye and causes sypmtoms such as blurring of vision, double vision, light sensitivity, fading of colours as changes in refarctive status (e.g. progressive short-sightedness).

People with high degrees of short-sightedness, glaucoma and diabetes mellitus are more prone to developing cataract.


Ealier stage of cataract

Middle stage of cataract

Mature cataract



Causes of Cataract
  • Age-related cataract
  • Drug-induced cataract (e.g. corticosteroids)
  • Secondary cataract (diabetes mellitus, glaucoma, uveitis)
  • Cataract related to eye injury (physical or chemical eye injuries)
  • Congenital cataract




Symptoms of Cataract
Early or mild cataract may not affect your eyesight at all. As cataract progresses, there may be:
  • Blurring of vision
  • Poor visual performance in low lighting conditions
  • Double vision
  • Light sensitivity
  • Refractive changes, e.g. Progressive shortedness



Choosing an IOL
An IOL (intra-ocular lens) can have the following functions:
  • Correction of short-sightedness and long-sightedness
  • Correction of astigmatism
  • Improving reading abilities
Our cataract service offers a choice of different types of IOLs which can help optimize the refractive outcomes of cataract surgeries.



When to consider cataract surgery?
Early cataracts may not affect your daily activities significantly and usually they can be observed for years. When cataracts cause vision to drop by approximately 50%, it is probably time to consider their surgical removals. Hyper-mature cataracts can cause complications such as glaucoma and make surgeries difficult.



Treatment for Cataract
Cataract surgery is usually performed under local anaesthsia. The aging lens is sucked out through a micro-incision of 1.8 mm to 2.2 mm and then an IOL is inserted to replace it. Visual recovery usually takes less than a week's time. After the operation, patients are expected to attend the clinic threes times on Day 1, Day 7 and Day 28.

Will cataract recur after surgery?

Cataract will not recur after surgery. The membrane supporting the IOL may become thickened and affect vision (posterior capsular opacificarion). YAG laser capsulotomy is a once and for all treatment for this condition and it is usally carried out at 2-3 years after the initial surgery.



Advanced Technology

About INFINITI™ VISION System

INFINITI™ was designed by Ophthalmic Surgical Professional. The functional design of INFINITI™ includes:
  • Puts unprecedented command at your finger tips
  • Advanced Fluidic System
  • Novel Clinical Interface
  • Unique Tri-modal energy delivery options
  • Greatly improved ergonomics for today's need and clinical setting

Revolutionary approach to lens removal that is safer, faster and more reliable

INFINITI™ Fluidic Management System

INFINITI™ Fluidic Management System with its non-compliant design, offering greater chamber stability and enabling precise surgical and consistent performance. The improvement in overall performance include:

  • Single hand insertion and removal system reducing set up time
  • Faster tuning and priming
  • Fluid is contained within a closed system, reducing the risk of contamination
  • Unique pressure-sensing capabilities for both irrigation and vacuuming, which can dynamically monitor and manage vacuum and flow information
  • Dual sensors in cassette
  • Rigid system leads to better fluid performance
  • Improved pumping system and improved control with added parameters enhancing surgical outcome
  • Industry-first active monitoring of irrigation to maintain chamber stability
  • Improved Pump technology
  • Reflexive quick aspiration and "live vacuum response" for greater control
  • Versatility of Peristaltic system
  • Precise vacuum and flow control


INFINITI™ Tri-modal energy delivery platform

1. AquaLase™

  • An entirely new technology that employs a natural balanced fluid medium to gently "wash away" the lens
  • High energy pulses result in gentle de-lamination and emulsification of selected tissue without mechanical disruption of surrounding tissues
  • Reduced complication by minimizing thermal risk and protecting from capsule rupture
  • Each microliter fluid pulse is reflected at the tip before exiting. Force is rapidly dampened in the surrounding fluid hence can approach the capsule closely without damaging surrounding tissues

2. Ozil™ Technology

Sonic oscillation of 32000 Hz is added to the handpiece, hence reducing the thermal damage to the tissues and reducing the surgery time and enhancing surgical outcome. In addition, Ozil™ is more effective in removing the harder lenses

3. Ultrasound

  • smaller, lighter and more balanced handpieces
  • More sensitive linear low-end control provides "true" linear control of ultrasound

INFINITI™ MICROSMOOTHTM

Microsmooth™ irrigation sleeve enables easier wound entry and less friction

About IQ

IQ Intraocular lens (IQ IOL)

IQ IOL is the newest lens with outstanding features and performances, including:
  • Improved image quality after surgery
  • The yellow lens, which is similar to the color of normal human crystalline lens without cataracts, can effectively filter both ultraviolet light and high energy blue light. It can help to reduce the damage to retinal tissues and may decrease the risk of macular degeneration.
  • Advanced aspheric design with thinner edge reduces spherical aberration and improve image quality
  • Single-Piece platform for superior biocompatibility and keeps the lens stable and centered in the bag

About ReStor®

ReStor® Yellow Lens is a unique technological innovation that let you enjoy the freedom of not needing to wear reading glasses after Cataract surgery. The excellent performances include:
  • The ability to quickly change focus offers excellent near and distance vision and good intermediate vision without the need of reading glasses or bifocals
  • Clinical trials indicated that 80% of ReStor® IOL patients found that they were no longer dependant upon their glasses, compared to only 5% of patients with monofocal lenses following cataract surgery
  • Yellow lens, which is similar to the color of normal human crystalline lens without cataracts, can filter both ultraviolet light and high energy blue light. It can help to reduce the damage to retinal tissues and may decrease the risk of macular degeneration.



Care after Surgery
Following surgery, you will need to use eye drops and medications as prescribed. You should avoid vigorous activities until the wound has healed. It is important not to rub or press on the eye. Sometimes, the posterior lens membrane may become opacified months or years after the cataract surgery leading to blurring of vision. If this occurs, a clear opening can be made in the opacified membrane with a special laser treatment.