Clinical Report: Vision Correction With Bitoric GP Lenses for Nystagmus
Background
Infantile nystagmus is a congenital condition affecting 1 in 1,000 to 1 in 6,000 children, characterized by involuntary eye movements. Patients often experience high refractive errors, particularly astigmatism, making effective vision correction crucial. Contact lenses are preferred for these patients due to their ability to provide optical correction.
Data Highlights
Parameter
Before Bitoric Lens
After Bitoric Lens
Visual Acuity (LEA Symbols)
20/200
20/100
Nystagmus Magnitude
–
Decreased by 40%
Key Findings
The patient exhibited 20/150 vision with spectacle correction prior to lens fitting.
Initial soft toric lenses were difficult to manage due to the patient's strong blink reflex.
Fitting with bitoric lenses resulted in improved visual acuity to 20/100.
The magnitude of nystagmus decreased by approximately 40% after bitoric lens fitting.
The patient's engagement with surroundings improved following lens application.
Clinical Implications
Bitoric GP lenses can be an option for patients with infantile nystagmus and high astigmatism, particularly when traditional soft lenses pose challenges.
Conclusion
The use of bitoric GP lenses demonstrates potential in managing visual impairment associated with infantile nystagmus.