The Light Adjustable Lens is probably the greatest leap forward in lens implant technology since the first implant was used almost exactly 60 years ago. It is simply the most technologically advanced implant available which can be adjusted after surgery to give the best vision possible for each individual eye without glasses.
TV Star Fred Batt was one of the first patients in the UK to have the Light Adjustable Implant by Mr Qureshi.
"The change is so specific and accurate that it has the potential to correct even minor imperfections which limit thereby giving patients 'high definition' vision as described by the media or the lens can also be adjusted to become bifocal or varifocal to give patients freedom from their glasses.”
Inside every eye is a natural lens which focuses light onto the retina. This lens is transparent and flexible becoming thicker and thinner to focus near and far. In our early forties it loses this ability and becomes more rigid so we need reading glasses to see close, a condition called presbyopia. As it ages further the lens becomes yellow and our vision starts to decline at which stage it is called a cataract.
Almost everyone over the age of 40 or so will be affected by presbyopia or cataracts.
The only treatment for cataracts is surgery where the ageing lens is removed and replaced with an artificial one. Cataract surgery is the commonest operation performed worldwide with over 14 million procedures carried out each year. More than 300,000 are performed within the NHS alone.
An increasing number of people are also opting for clear lens extraction where the lens is removed because it can no longer focus and is replaced with an artificial multifocal or accommodative implant to restore near and distance vision and reduce dependence on reading glasses or varifocals. These are usually compromised by poor intermediate vision and glare when looking at lights.
According to some studies over 70% of people who have lens implants after cataract surgery or clear lens extraction are still left with a degree of long sight, short sight or astigmatism after surgery which means they still need to wear glasses to achieve good vision. This is usually due to preexisting astigmatism or induced astigmatism from the operation, inaccuracy in the biometry measurements taken before surgery to choose the lens strength or the unpredictable effects of wound healing.
For the first time in the history of eye surgery we can correct any residual errors reducing vision without any additional surgical procedures. This is accomplished by adjusting the lens implant after surgery by the safe and non-invasive application of ultraviolet light controlled by a sophisticated computer system. The lens adjustment is so predictable that it is possible to give patients 20/20 normal vision without glasses in healthy eyes.
Mr Qureshi implants the lens using a micro-incision surgical technique where no stitches are required as day case surgery. Approximately 2 weeks after surgery when the wound has healed the patient returns for an adjustment of the lens to achieve the best vision possible. More than one adjustment is possible if required before the lens is 'locked'. It will never need to be replaced and will last forever. The adjustment to optimize your vision is permanent and it will never again need readjustment.