Complete Guide to Abnormal retinal correspondence
Everything you need to know about this condition
What is Abnormal retinal correspondence?
Abnormal retinal correspondence (ARC) is a condition where the brain incorrectly aligns images from each eye, leading to vision problems and potentially causing eye strain or double vision. This occurs when the brain attempts to compensate for a misalignment between the two eyes by adjusting the way it processes visual information. According to WHO guidelines, ARC is a common condition that can affect people of all ages, with an estimated prevalence of 2-5% in the general population.
Causes and Risk Factors
ARC can be caused by a variety of factors, including strabismus (crossed eyes), amblyopia (lazy eye), brain injury, or certain medical conditions such as multiple sclerosis or stroke. Genetic factors can also play a role, as some people may be more prone to developing ARC due to their family history. Lifestyle risks, such as prolonged screen time or reading, can also contribute to the development of ARC. Additionally, certain occupations, such as computer programming or graphic design, may increase the risk of developing ARC due to prolonged visual demands.
Signs and Symptoms
The symptoms of ARC can vary in severity and may include double vision, eye strain, headaches, and blurred vision. In some cases, people with ARC may experience no symptoms at all, while others may experience significant visual disturbances. Early signs of ARC may include difficulty reading or watching TV, while advanced signs may include persistent double vision or eye pain. According to the Mayo Clinic, people with ARC may also experience difficulty with depth perception, which can increase the risk of accidents or injuries.
How is Abnormal retinal correspondence Diagnosed?
Diagnosing ARC typically involves a comprehensive eye examination, including a visual acuity test, cover test, and retinoscopy. An orthoptist or optometrist may also perform additional tests, such as a prism test or a Worth 4-dot test, to assess the alignment of the eyes and the brain's ability to process visual information. In some cases, imaging tests such as MRI or CT scans may be used to rule out underlying conditions that may be contributing to the development of ARC.
Treatment Options
Treatment for ARC typically involves a combination of vision therapy, eye exercises, and prism lenses. Vision therapy is a type of physical therapy for the eyes that can help improve eye coordination and reduce symptoms of ARC. Eye exercises, such as focusing on a point and then shifting gaze to another point, can also help improve vision alignment. Prism lenses, which are special glasses that can help align images from each eye, may also be prescribed to reduce symptoms of double vision. In some cases, surgery may be necessary to correct underlying conditions, such as strabismus or amblyopia. According to NICE guidelines, surgery should only be considered after other treatment options have been tried and have failed to improve symptoms.
Home Care and Self-Management
There are several things you can do at home to help manage your ARC symptoms. Practicing good eye care habits, such as taking regular breaks when working on a computer or reading, can help reduce eye strain. Getting regular eye exams and following your eye doctor's recommendations can also help prevent the progression of ARC. Additionally, maintaining a healthy lifestyle, including a balanced diet and regular exercise, can help reduce your risk of developing ARC.
Prevention Strategies
Preventing ARC involves reducing your risk of developing underlying conditions, such as strabismus or amblyopia. Getting regular eye exams and following your eye doctor's recommendations can help identify any potential problems early on. Maintaining good eye care habits, such as taking regular breaks when working on a computer or reading, can also help reduce your risk of developing ARC. According to the American Academy of Ophthalmology, children should have their eyes examined at birth, at 6 months, and at 3 years to detect any potential problems early on.
When to See a Doctor
If you are experiencing any symptoms of ARC, such as double vision or eye strain, you should see a doctor as soon as possible. If you experience sudden double vision or severe eye pain, you should seek medical attention immediately. Additionally, if you have a family history of ARC or are at risk of developing underlying conditions, such as strabismus or amblyopia, you should have regular eye exams to monitor your eye health.
Living with Abnormal retinal correspondence
Living with ARC can be challenging, but with the right treatment and self-management strategies, you can reduce your symptoms and improve your quality of life. Working with an orthoptist or optometrist to develop a personalized treatment plan can help you manage your symptoms and improve your vision. Additionally, maintaining a healthy lifestyle and getting regular eye exams can help prevent the progression of ARC. According to the WHO, with proper treatment and management, people with ARC can lead active and fulfilling lives, with minimal impact on their daily activities.

Written by Dr. Dinesh Kumar
MD, Specialist Physician • 15+ Years Experience