Isometropia, (/ˌaɪsoʊmɪˈtropiə/), is a term used in optometry to describe a visual condition where both eyes have the same refractive error. The word isometropia is derived from two Greek words, "isos," meaning equal, and "metron," meaning measure, and the suffix "-opia" meaning vision or sight. The correct spelling of isometropia includes the letter "o" after the letter "p" and the stress is on the third syllable. Accurate spelling is essential in optometry, where precision is necessary.
Isometropia is a term used in the field of optometry to describe a particular refractive condition in which both eyes have the same refractive error. It is derived from the combination of two Greek words, "iso," meaning equal or same, and "metropia," referring to the measurement of vision. Simply put, isometropia occurs when the eyes have identical amounts of myopia (nearsightedness), hyperopia (farsightedness), or astigmatism.
This condition is distinct from anisometropia, where the refractive error in each eye differs. Isometropia can manifest in different ways, such as both eyes being myopic or both being hyperopic, or even both having astigmatism. It can occur in both children and adults, and it can vary in severity.
Isometropia often results in reduced visual acuity and can lead to symptoms like blurred vision, eye strain, discomfort, and headaches. It can also affect depth perception and binocular vision. Individuals with isometropia may require corrective measures such as glasses, contact lenses, or refractive surgery to achieve clear and comfortable vision.
Optometrists and ophthalmologists diagnose isometropia through comprehensive eye exams, which typically involve measuring refractive errors using techniques like retinoscopy or autorefraction. Treatment for isometropia involves correcting the refractive errors with appropriate eyewear or other vision correction methods. Regular follow-up exams are recommended to monitor any changes in refractive status and ensure optimal visual function.
Equality in kind and degree of refraction in the two eyes.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word isometropia is derived from two Greek roots: iso, meaning equal or same, and metron, meaning measure or length. So, isometropia literally means equal measure or equal length.