10 Common Causes of Double Vision
Article Sources
- 1. Edsel B Ing, M. (2020, June 11). Ophthalmologic Manifestations of Myasthenia Gravis. Retrieved November 18, 2020, from https://emedicine.medscape.com/article/1216417-overview
- 2. Neeraj N Mathur, M. (2020, May 12). Orbital Fractures. Retrieved November 18, 2020, from https://emedicine.medscape.com/article/867985-overview
- 3. Suhr, C. L., OD, Chubb, L., OD, & Himmelein, L., OD. (2019, August 15). Top Causes of Double Vision. Retrieved November 18, 2020, from https://www.reviewofoptometry.com/article/top-causes-of-double-vision
Double vision, also known as diplopia, can be defined as the concurrent perception of two images of a single object. This condition can have many underlying causes; however, a thorough physical examination and a detailed history of the patient can help the physician to make an accurate diagnosis. Importantly, there are two types of diplopia: monocular and binocular. In fact, it is one of the first aspects of diplopia that a physician must determine during an assessment. Hence, if you are experiencing double vision, the physician will likely ask you to cover one eye: if the symptom persists it is probably monocular diplopia. However, if the double vision disappears after this test, then it is likely binocular. In both cases, a comprehensive clinical investigation will take place to differentiate between multiple possible causes.
Monocular diplopia is generally caused by problems within the eye itself. For instance, refractive errors (astigmatism), dry eye, corneal problems, changes in the lens (i.e. cataracts), retinal disease, and certain medications can cause monocular diplopia. Conversely, binocular diplopia is commonly caused by conditions that affect the muscles around the eyeballs that control the direction of our gaze (i.e. cranial nerve palsies). Additionally, injuries to the central nervous system (i.e. tumors, vascular events), trauma to the orbit, thyroid eye disease, neurological diseases (i.e. Myasthenia Gravis), and drugs are among the countless factors that can lead to binocular diplopia.
Undoubtedly, the duration and treatment of double vision will depend on its cause. It is of great importance to contact your healthcare provider if you experience drastic changes in your vision, including diplopia.
