Multi-Focal Lens Implant
Lens Implant and Replacement
Replacement of the poorly functioning natural lens with a high performance lens implant can result in complete independence from glasses.
What is Lens Implant / Replacement?
Lens Implant / Replacement involves replacement of the natural lens inside the eye with a high-performance lens implant. Trifocal lenses and “Extended Depth of Focus” (EDOF) lenses can reliably provide independence from distance, intermediate and near vision glasses.
Behind the pupil in the eye is a lens that is used for fine focusing. With advancing age, the lens becomes harder and stops moving, which results in the need for reading glasses. With time the same lens becomes cloudy and eventually affects the ability to see, this is then called a cataract. Lens replacement is similar to cataract surgery in that the dysfunctional lens is removed and replaced with a sophisticated intra-ocular lens implant measured specifically to suit each eye.
Am I suitable for Lens Replacement surgery?
Generally those who are over the age of 50 who have any level of hyperopia (far sight) and 55 with any level of myopia (short sight) and astigmatism. Those who have cataracts may also be suitable for high performance trifocal lenses. To be suitable for premium lenses, eye health has to be good with no identified problems that can affect lens performance. Those with macular degeneration or visual field loss from glaucoma for instance will not be suitable for a premium lens.
How safe is Lens Replacement surgery?
At the Blackrock Clinic we are very selective about those who are eligible. Safety is our number one priority and we make our decisions based on scientific evidence, declining those who might be at increased risk.
Are type of lenses are used?
Extended depth of focus and trifocal lenses are the most commonly used lenses at Blackrock Clinic. Suitability for the lens implant is determined at consultation when numerous tests including the optical properties of the cornea and tear film are evaluated. To work well, these high performance lenses require a cornea with good optical properties as well a surface free of dryness and no streaky tear film. Expectations of how the lens performs will be provided during consultation. Patients must understand the concept of adaptation which involves the brain becoming accustomed to the new optical system and picking up new information. The lens has microscopic rings which provide near vision and as a consequence patients may well experience transient halos that disappear with adaptation.
What is the consultation process like?
At Blackrock Clinic a thorough preoperative consultation will be conducted by the surgeon who will carry out your procedure. The surgeon is supported by a team of highly trained technicians who perform a minimum set of investigations and measurements.
Based on initial findings, additional investigations may be required to further evaluate the eyes as necessary. During the process, the technicians and optometrists are in constant contact with and directed by the Ophthalmic Consultant. Once this has been accomplished the patient will be seen and counselled by the Consultant.