{"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 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 causing blurred or double vision treated by prism lenses include:<\/span><\/p>\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 A complete eye exam is critical if you or a loved one is experiencing a sudden or fast-onset of blurred vision. Typically, refractive errors creep up on you over time. Any sudden vision change should always trigger immediate contact with your optometrist or ophthalmologist.\u00a0<\/span><\/p>\n If you have existing health conditions or newly diagnosed conditions that put you at risk for needing prism corrections, we recommend more frequent eye exams. If your child is born with strabismus (lazy eye) or crossed eyes and prism lenses are deemed a potential treatment, that will happen. Noticing any <\/span>signs your child has blurred vision<\/span><\/a> (watery eyes, frequent eye rubbing, struggling to read, not paying attention in class, etc.)<\/span><\/p>\n Otherwise, it\u2019s only through annual eye exams that we notice signs of eye or eye-muscle coordination issues requiring correction via prism lenses.<\/span><\/p>\n Prism lenses aren\u2019t different from regular eyeglasses in how they look and feel once the right prism is given. The difference is the addition of a prism - made from plastic or glass - embedded into the lens. The first pair of lenses may look different because we fit <\/span>a temporary Fresnel prism (a thin press-on vinyl sticker) over the front or back of the eyeglasses<\/span>. This initial sticker is somewhat visible.<\/span><\/p>\n However, the temporary Fresnel prism is essential to ensure correct prism placement. Once we dial the placement in, you\u2019ll choose frames for your new prism lenses. In most cases, prism lenses do not permanently treat the condition leading to blurred vision (young children with crossed eyes or with some eye muscle issues are an exception). So, the lenses work when they\u2019re on, but you\u2019ll continue experiencing blurred vision without them. Also, prisms are not yet able to be embedded in contact lenses. Unless you also have a refractive error, eyeglasses are the only option for correcting blurred vision treated with prism lenses.\u00a0<\/span><\/p>\n Since certain health issues are a leading cause of blurred vision requiring prism correction, we like to emphasize <\/span>the importance of healthy lifestyle choices<\/span><\/a>. The healthier you live and the better you manage underlying health conditions, the more you\u2019ll support healthy eye and vision health.<\/span><\/p>\nHow Prism Lenses Treat Prism Correction<\/span><\/h2>\n
Conditions Treated Using Prism Lenses<\/span><\/h2>\n
Issues affecting the eye muscles<\/span><\/h3>\n
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Prism Correction Diagnosis & Treatment<\/span><\/h2>\n
What are prism lenses?<\/span><\/h3>\n
Don\u2019t forget about lifestyle choices that support healthy vision<\/span><\/h3>\n
Correct Blurred Vision At Eye to Eye Family Vision Care<\/span><\/h2>\n