Contralateral effects in the electro-oculogram.
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Biomedical subjects
Publications and source records attributed to A Pinckers.
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A description is given of a new family with X-linked cone dystrophy. A survey is also given of the findings in X-linked cone dystrophy. When an eye specialist sees a male patient with myopia and reduced visual acuity, the cause of which is not clear from the fundus picture, an X-linked cone dystrophy should be considered. Electrophysiological examination, combined with detailed testing of colour vision, can provide an explanation of the poor vision which satisfies both the patient and the ophthalmologist.
The authors report on a healthy young boy with a bull's eye maculopathy and trichorhexis nodosa. The combination, though hitherto unreported, is not unexpected because there exists an immunologic relationship between the retinal pigment epithelium and the hair bulb.
Since Goodman and coll. introduced the concept of cone dysfunction syndromes, many papers have been published. Some authors based their diagnosis on functional data while others referred to the classic denominations. As a consequence there is no uniformity with regard to terminology of the cone dystrophies. In an effort to avoir the introduction of new terms the author presents a classification of cone dysfunctions based on the results of electroretinography and color vision examination. This classification is dynamic since it allows the follow-up of a cone dystrophy into its late stages.