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Bilateral Concurrent Eye Examination with a Head-Mounted Perimeter for Diagnosing Functional Visual Loss
Toshiaki Goseki1, Hitoshi Ishikawa2, Nobuyuki Shoji2
1Department of Ophthalmology, Kitasato University School of Medicine , Kanagawa, Japan.
Neuro-Ophthalmology (Aeolus Press)
|December 9, 2016
Summary
Bilateral concurrent eye examination using the imo® perimeter aids in diagnosing functional visual loss when standard tests fail. This method shows promise for future clinical use in identifying unilateral visual impairments.
Area of Science:
- Ophthalmology
- Neuroscience
Background:
- Functional visual loss presents diagnostic challenges.
- Standard ophthalmological tests can be ineffective in diagnosing functional visual loss.
Purpose of the Study:
- To report a case series using bilateral concurrent eye examination with the imo® perimeter.
- To evaluate the efficacy of the imo® in diagnosing functional visual loss.
Main Methods:
- A case series involving three subjects (11-year-old female, 15-year-old male, 24-year-old male).
- Bilateral concurrent eye examination using a head-mounted perimeter (imo®).
- Comparison of imo® results with Goldmann perimetry and Humphrey Field Analyzer II.
Main Results:
- The imo® facilitated the diagnosis of unilateral functional visual loss in all subjects.
- Results from the imo® differed significantly from those of conventional perimetry methods.
- This discrepancy suggests the potential for functional visual loss.
Conclusions:
- Bilateral concurrent examination with the imo® may become a standard diagnostic tool.
- The imo® shows potential for improving the diagnosis of unilateral functional visual loss.
