Som Prasad MS FRCSEd FRCOphth FACS

Consultant Eye Surgeon
Welcome     Your Surgeon     Clinics     Eye Conditions     Surgery     LMI - Implant for AMD     Self care     Contact Us     Medico-legal     Fine Print     Site Map      
AMD - background
Assessment - AMD Implants
Why Implants?
AMD Implant benefits
Implant types - AMD
Important Considerations
AMD Implant Surgery
After OP
AMD Implants Risks
LMI - Further reading
The LMI - Lipshitz Macular Implant
 
 
We have started a new service with this exciting new implantable system which allows about 80% of patients who have this implant to regain useful central vision. This will be suitable for patients with advanced macular degeneration and some other macular diseases.
 

How does the LMI work?

The main concept of the LMI is based on the use of an intraocular implant that contains mirrors. This implant creates a telescopic effect that modifies the central image while preserving the peripheral vision. That way the LMI redesigns vision on the human retina for treatment of retinal diseases.

 

As with external telescopes, the concept of optically treating patients that suffer from AMD or other retinal diseases consists of creating a magnified image on the central retina so that the image falls on a larger area than the diseases retina.

In AMD, most photoreceptor cells on the center of the macula do not function and cannot detect light, but photoreceptior cells in the more peripheral area are still alive and functioning.

By increasing central visual field using two times to three times magnification on the macula, we are able to use enough cells in order to create an image that can be seen by the patient. 

A detailed patient information leaflet can be downloaded here.

Further reading:
 
1. Early results - publication in the Journal of Cataract & Refractive Surgery
2. Relevant NICE guidance (on NICE website) OR Direct Download
3. LMI in the news - The Daily Mail 11th August 2009
 
 
This page was last modified on October 03, 2009