{"id":4750,"date":"2023-10-30T20:32:09","date_gmt":"2023-10-31T01:32:09","guid":{"rendered":"https:\/\/eyetoeyefamilyvisioncare.com\/?p=4750"},"modified":"2024-03-26T23:05:25","modified_gmt":"2024-03-27T04:05:25","slug":"what-is-prism-correction","status":"publish","type":"post","link":"https:\/\/eyetoeyefamilyvisioncare.com\/what-is-prism-correction\/","title":{"rendered":"What Is Prism Correction?"},"content":{"rendered":"

Eyeglasses are usually designed to correct a refractive error - when the shape of your eye keeps light from focusing correctly on your retina, compromising your vision. This is the most common type of vision loss, resulting in blurred vision - often seeing double or triple of something.\u00a0<\/span><\/p>\n

However, some patients have blurred or double vision due to light falling on different parts of the retina, but it is unrelated to their eye shape. In these cases, prism correction may restore vision.<\/span><\/p>\n

How Prism Lenses Treat Prism Correction<\/span><\/h2>\n

Multiple conditions cause light to fall on different parts of the retina that have nothing to do with the shape of the eye. Some of them are due to issues with the eye muscle or optic nerve, and others may be related to <\/span>an existing disease,<\/span><\/a> a brain injury, or another cause of neurological problems.<\/span><\/p>\n

Prism lenses use triangular prisms to redirect the light entering the pupil. The angles of the triangular prism are customized to correct light refraction proportionally. A simple example of this type of technology is the way light can bend by reflecting off the transparent cover of a watch face (incidentally, these are also \u201cprims\u201d made from crystal, glass, or plastic). The light refracts in different directions depending on how you angle your wrist.<\/span><\/p>\n

In the case of prism lenses, the light refracts such that the eye thinks an object is in a slightly different location than it is or to make the eyes work in better alignment. By doing so, a double (blurred) image becomes clear. Prism lenses do not magnify or have any \u201cfocusing\u201d power, so they are not the same type of lens we use for nearsightedness, farsightedness, or astigmatism.\u00a0<\/span><\/p>\n

Conditions Treated Using Prism Lenses<\/span><\/h2>\n

Conditions causing blurred or double vision treated by prism lenses include:<\/span><\/p>\n

Issues affecting the eye muscles<\/span><\/h3>\n

Light may not be able to focus on a single point on the retina <\/span>if the eye muscles are weak<\/span><\/a> or not functioning properly. If the issue prevents the eyes from aligning properly, prism lenses may be an option. Examples are:<\/span><\/p>\n