Study of WA-NG Telescope Prosthesis in Patients With End-stage Age-related Macular Degeneration

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Clinical Phase

EARLY_PHASE1

Study Classification

INTERVENTIONAL

Study Start Date

2011-05-31

Study Completion Date

2016-05-31

Brief Summary

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This is a pilot study to evaluate the safety of the Model WA-NG telescope prosthesis in patients with bilateral moderate to profound central vision impairment due to end-stage age-related macular degeneration.

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Detailed Description

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Patients will be screened for eligibility and informed consent will be obtained from those who meet screening criteria and are interested in participating in the study. Eligible patients will be examined preoperatively to obtain a medical history and to establish a baseline for ocular condition. Baseline measurements will include successful use of an external telescope.

Postoperatively, patients will undergo ophthalmic evaluation at regular intervals as specified in this protocol and will be required to return for 6 to 10 additional visits for vision training with a low vision specialist.

Conditions

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Age Related Macular Degeneration

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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WA- NG Telescope Prothesis

Implantable Miniature Telescope for end stage AMD (Age-related Macular Degeneration)

Group Type EXPERIMENTAL

Telescope prosthesis

Intervention Type DEVICE

Monocular implantation of the telescope prosthesis after cataract extraction

WA-NG Telescope Prothesis

Intervention Type DEVICE

The WA-NG telescope prosthesis (Figure 1) is the next generation telescopic implantable device which, when combined with the optics of the cornea, constitutes a telephoto system for improvement of visual acuity in patients with severe to profound vision impairment due to bilateral, end-stage age-related macular degeneration. The device is implanted in one of the patient's eyes. In this way, the implanted eye provides central vision and the non-implanted eye can continue to provide peripheral vision.

Interventions

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Telescope prosthesis

Monocular implantation of the telescope prosthesis after cataract extraction

Intervention Type DEVICE

WA-NG Telescope Prothesis

The WA-NG telescope prosthesis (Figure 1) is the next generation telescopic implantable device which, when combined with the optics of the cornea, constitutes a telephoto system for improvement of visual acuity in patients with severe to profound vision impairment due to bilateral, end-stage age-related macular degeneration. The device is implanted in one of the patient's eyes. In this way, the implanted eye provides central vision and the non-implanted eye can continue to provide peripheral vision.

Intervention Type DEVICE

Other Intervention Names

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IMT-NG

Eligibility Criteria

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Inclusion Criteria

* Bi-lateral, stable, moderate to profound (20/80 to 20/800) central vision impairment due to bilateral scotoma associated with end-stage macular degeneration, defined as retinal finds of bilateral, geographic atrophy or disciform scar with foveal involvement. Phakic in the operative eye. Must achieve a 5 letter improved with external telescope simulator. More medical

Exclusion Criteria

* Evidence of active CNV or any ophthalmic pathology that compromises peripheral vision of fellow eye or predisposes eye rubbing. Previous intraocular of corneal surgery of any kind in operative eye. Retinal disease, optic nerve disease, diabetic retinopathy, retinal tears, or any intraocular tumor or medical or ophthalmic condition that in the opinion of the investigator renders the subject unsuitable for participation.

Minimum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No