3M uses cookies on this site Detailed information on cookies and their use can be found in our Privacy Policy. You can customize the cookie-related settings at any time by clicking on Cookie Preferences in the footer of this page.

By clicking "Accept and Proceed" you acknowledge that you agree to the use of cookies on your computer

Accept and Proceed

Skip to Primary Navigation Skip to Site Navigation Skip to Main Content All 3M.com Site Map


The following table gives an explanation of some of the technical terms used when discussing conditions relating to eye occlusion.

Abduction Moving an eye outward.
Adduction Moving an eye toward the nose.
Amblyopia Amblyopia (Lazy Eye) is a condition of having diminished sight in one eye.
Amblyopic Eye The eye in which vision has diminished.
Anisometropia A condition which notes different refractive ability of the two eyes.
Binocular Anomalies A variance in the standard of normal binocular function.
Binocular Function The ability of the eyes to see.
Cover test Diagnostic test for strabismus.
Double Vision A condition where the patient sees more than one object at the same time. This is usually because of misalignment of the eyes.
Eye Turn An eye that turns away from centre.
Fusion The brain's ability to use both eyes together and have perception of depth.
Occlusion Therapy Occlusion Therapy is a method of reducing the visual input to the eye in an attempt to correct the eye. This is traditionally in the form of using an eye patch.
Occular Disease An eye related disease.
Ophthalmologist The Ophthalmologist is responsible for the management of patients referred for secondary care. This includes carrying out surgical interventions and is involved in the planning of local services for the management of ocular disease.
Ophthalmology The study of the eye and the treatment of any anomalies or defects.
Optometrist The Optometrist is responsible for refractions, managing patients refractive conditions, dealing with binocular anomalies and binocular disease.
Orthoptist The Orthoptist is responsible for assessing vision problems. The Orthoptist works alongside the Opthalmologist helping patients who are affected with disorders of binocular function such as strabismus and amblyopia.
Patching This refers to using an eye patch which is adhered to the eye's surrounding area as part of Occlusion Therapy.
Refractive Error Having a refractive error refers to being short or long sighted.
Strabismus Strabismus (Squint) is the misalignment of the two eyes such that they cannot focus on the same point simultaneously.
Supression The brain disregards an image of one eye to avoid double vision. It might be images from a misaligned eye or an eye with a blurry image.

Service and Support

Buy now from 3M Direct