Phoria is a word used in ophthalmology to describe a condition in which the eyes are not properly aligned. The phonetic transcription of this word is /ˈfɔː.ri.ə/, which illustrates the pronunciation of each syllable. The "ph" in phoria represents the /f/ sound. The "o" in the first syllable represents a long /ɔː/ sound, while the "i" in the second syllable represents a short /ɪ/ sound. The final "a" in phoria represents a schwa /ə/ sound, which is a neutral vowel sound.
Phoria is a term used in the field of optometry and ophthalmology to describe a condition where the eyes have a tendency to deviate from their usual alignment or position when focusing on a specific object. It is a type of eye misalignment that occurs when the two eyes are not perfectly aligned and do not work together harmoniously.
There are two main types of phorias: esophoria and exophoria. Esophoria refers to the inward deviation or crossing of the eyes when focusing on a nearby target, while exophoria denotes the outward deviation of the eyes when focusing on a distant object. Phorias can affect one eye or both eyes simultaneously, and the deviation may be constant or intermittent.
Phorias typically occur due to an imbalance in the extraocular muscles responsible for eye movement and alignment. It can result from various factors, including hereditary conditions, certain medical conditions, visual stress, or excessive use of digital devices. Phorias can cause discomfort, eye strain, headaches, double vision, and visual fatigue.
To diagnose phoria, eye care professionals perform a comprehensive eye examination, including assessing ocular alignment, binocular vision, and coordination. Treatment for phoria may involve vision therapy exercises, prism lenses, or the use of specialized eyeglasses or contact lenses to help correct the eye misalignment. In some cases, surgery may be necessary to realign the eyes. Phoria management aims to improve eye coordination, relieve symptoms, and enhance visual comfort and efficiency.
The position of the eyeball as regards the direction of its visual axis; the term is always qualified by a prefix, such as orthophoria, heterophoria, hyperphoria, etc.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "phoria" is derived from the Ancient Greek word "phoros", which means "to bear" or "to carry". It is derived from the verb "pherein", which means "to carry". In the context of eye disorders, "phoria" refers to an eye condition where the eyes tend to deviate from their usual alignment when not actively focusing on an object.