Symptom 5: Nystagmus – The World in Motion
One of the physical manifestations associated with spinocerebellar ataxia is Nystagmus – a symptom that disrupts the controlled movements of the eyes. This disruption stems from the cerebellum’s impaired capacity to regulate and stabilize the gaze, a crucial aspect of our visual processing system.
Initially, the onset of nystagmus might be barely noticeable. Perhaps you find your eyes making minor, involuntary jerks when you’re tired or stressed. These sporadic episodes might seem innocuous at first and may not even interfere with your daily activities. However, it’s vital to pay attention to these subtle changes as they could signal the onset of a more significant issue like SCA.
As spinocerebellar ataxia progresses, so too does the intensity of nystagmus. The involuntary movements of the eyes become more frequent and more pronounced. Your eyes may start darting from side to side, bobbing up and down, or even making circular motions without your control. This constant movement can make focusing on objects or tracking moving items a challenge. Some individuals with nystagmus describe their vision as constantly “jumping” or feel like their environment is always in motion.
Nystagmus isn’t just a visual disturbance. Its effects can spill over into other aspects of daily life. It can lead to additional complications such as dizziness or balance problems. This is because our visual system plays a significant role in maintaining our body’s equilibrium. When vision is disturbed, our sense of balance can also be affected, making us more prone to stumbles or falls. These added difficulties underscore the importance of seeking medical help when changes in eye movements are observed.
As challenging as living with nystagmus can be, it’s essential to remember that help is available. Consultation with a neurologist or ophthalmologist can offer insight into management strategies, which may include a combination of therapies and, in some cases, medications. These professionals can also conduct thorough examinations to determine whether nystagmus is a symptom of an underlying neurological condition like SCA or if there are other potential causes that need to be explored. Awareness, proactive action, and professional guidance can help navigate the challenges brought on by this SCA symptom. (5)
