Die Untersuchung der kritischen (fovealen) Flickerfusions-Frequenz (CFF) hilft bei der diagnostischen Trennung organischer Läsionen von orthoptisch bedingten Amblyopien
| Autor: | Adolphe Neetens, P. van den Ende, H. Wildberger, A. Junghardt |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
medicine.medical_specialty
Visual acuity genetic structures business.industry Eye disease media_common.quotation_subject Flicker fusion threshold medicine.disease eye diseases Surgery Vision disorder Ophthalmology Foveal medicine Maculopathy Contrast (vision) sense organs medicine.symptom business Orthoptic media_common |
| Zdroj: | Klinische Monatsblätter für Augenheilkunde. 212:311-313 |
| ISSN: | 1439-3999 0023-2165 |
| DOI: | 10.1055/s-2008-1034892 |
| Popis: | Purpose To measure critical (foveal) flicker fusion frequencies (CFF) in normal eyes, unilateral maculopathies and neuropathies and in orthoptic amblyopias. Methods A newly developed apparatus (4F) with LED's measured subjective foveal CFF by ascending and descending mode in a group of normals and patients. Results The apparatus (4F) measures temporal resolution. Foveal CFF ist more reduced in neuropathies than in maculopathies. In contrast, CFF in amblyopic eyes is hardly reduced, in most cases equal or better than in the dominant fellow eye. This is independent from the visual acuity of the amblyopic eye. Conclusion CFF testing is useful in the evaluation of unexplained (unilateral) reduction of visual acuity. A dissociation between visual acuity and CFF (within normal range) is present in cases of amblyopia. |
| Databáze: | OpenAIRE |
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