Concomitant vs. Incomitant
Understanding the Difference
When it comes to misaligned eyes, there are two main types to consider: concomitant and incomitant. Let’s take a closer look at each one.
Concomitant esotropia is a condition where the size of the deviation, or eye misalignment, remains constant regardless of the direction of gaze. This means that no matter where the person looks, the extent of the misalignment remains the same. It is the most common type of misaligned eyes, accounting for the majority of cases.
Incomitant esotropia, on the other hand, is characterized by a deviation that changes in size depending on the direction of gaze. This means that when the person looks in different directions, the misalignment may vary. Incomitant esotropia can occur in both children and adults and is often caused by neurological, mechanical, or myogenic problems affecting the muscles responsible for controlling eye movement.
In terms of occurrence, concomitant esotropia is more likely to develop in children, with around 40% of cases appearing before the age of 12 months or between two to four years old. Incomitant esotropia, however, can occur at any age due to various underlying factors.
Understanding the difference between concomitant and incomitant esotropia is crucial in diagnosing and treating misaligned eyes effectively. By identifying the specific type, healthcare professionals can develop appropriate treatment plans to help patients achieve optimal eye alignment and visual function.
Choosing Between the Right Side or Left Side
When it comes to a condition called esotropia, individuals often find themselves squinting with one eye or the other. The squinting may occur consistently, or it may alternate between the left and right eye. In cases of left esotropia, the left eye squints, while in right esotropia, the right eye is affected. Unfortunately, this constant fixation on one eye can lead to the development of a lazy eye or amblyopia.
Medical professionals may employ a method called occlusion, where they use a patch on the dominant eye to encourage the use of the squinting eye. By doing so, they aim to prevent or minimize the occurrence of amblyopia. In instances of alternating esotropia, the individual switches their fixation between the eyes, providing some relief and balance.