OptoLight’s OriLens implants are telescopic implants with miniature reflective and refractive surfaces embedded inside in a configuration of a Cassegrain telescope.
They are not intended to cure the AMD disease, but rather to help patients see and function better with the visual potential that was still left in their eyes.
The implant contains miniature mirrors that are embedded inside it. These mirrors are configured, designed and accurately positioned in order to create a precise magnifying telescopic effect on the macular area.
They magnify the image by roughly 250% and the image is focused at 60 cm. It can be used for distance and for near, by adding regular reading glasses. The depth of focus is 1.50 Diopters.
If needed, the magnification for near can be increased by using external glasses with a plus lens and bringing the focus closer (the original focus is 60 cm and by adding plus eyeglasses the focus may be closer, 30 cm, and then the magnification is 500%).
External magnifiers for AMD patients exist for many years, but they are seldom used due to narrow visual field and more importantly, the relative movement between the eye and the telescope, which causes the patient’s visual axis to move in and out of the device. That is why a patient using an external telescope, needs to move his/her head in order to screen an image. These head movements are very difficult to get used to, especially for the elderly.
When implanting an entire telescope inside an eye (in contrast to an external telescope) the implanted telescope moves naturally with the eye movements and there are no relative movements between the eye and the telescope (as with the external telescope) so the patient’s eye screens the reading material or the object normally.
The OriLens is designed as a secondary implant for an eye that has already undergone cataract surgery but it can also be used for primary phakic implantation, when a regular intra-ocular implant for cataract is implanted first and the OriLens is added during the same surgical procedure.
It can be used for any type of AMD (wet, dry or scar) as long as it improves vision of patients who are tested by using an external telescope. Please refer to “Initial Screening” and “Comprehensive Screening” sections for more details.
The telescopic implant is implanted in one eye, while the fellow eye is not treated.
Although it contains a whole telescope inside, the OriLens was designed so that its external dimensions would be as close as possible to other intra-ocular implants, in order to make it simple and safe to implant and fixate.
The OriLens is the newest and most advanced model of the mirror telescopic implants that were developed by OptoLight Vision. The first mirror telescopic implant, the LMI (Lipshitz Macular Implant) was first implanted in 2008 followed by the OriLens that was introduced in 2011 both were distributed around the world since then.
OriLens characteristics in summary:
|Optical resolution||30 lp/mm|
|Additional unmagnified image||Only for pupil diameter of above 4.40 mm|
|AMD type||Dry/Wet/Scar stage, bilateral|
|AMD stage||Medium to late stage|
|External telescope test||3 lines of improvement with x2.5 telescope|
|Cataract removal||Indicated for both phakic & pseudophakic eyes|
|Visual Acuity||20/80 to 20/800 in the operated eye|
|Ocular pathology||None, except for cataract|
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