The author has studied the choriocapillaris using the equi-density technique on early fluorescein angiography pictures of normal human fundi. This new method of examination seems to prove that the circulation in the chorio-capillaris in man has a very particular form, similar to that demonstrated in the monkey.
In squinting patients with A.R.C. during the cover test, the keeping of fixation exhibits sometimes an hypermetric movement of the eye, which is accounted with a false localization of images.
A case of leiomyoma of the iris confirned to the nasal quadrant in a 64 year old man is presented. The clinical and histopathological characteristics of this observation confirms the classical data about this rare tumor : clinical silence, discovery through a complication, difficult diagnosis, therapeutical value of the surgical biopsy and good prognosis.
The corneal cells are destroyed within a 10 mm diameter circular belt by liquid nitrogen application in vivo. The endothelial regeneration is followed from day to day using endothelial flat preparation technic, and is compared to the corneal thickness measurement and to the estimation of transparency. From the 5th day, Descemet's membrane is entirely covered by the regenerated endothelium; from this time, both thickness and transparency of the stroma become normal. Therefore, in spite of the persitence of morphologic abnormalities, the regenerating endothelial cells preserve or obtain again very rapidly their specific function of a barrier against hydration of the stroma.
This study compares and verifies the efficiency of two functional tests based on intermittent light stimulation. One is the De Lange curve, the other flicker E.R.G. recorded in defined photopic conditions and analysed with different methods. The studied cases belong to a reference group and other groups including foveolar lesions, parifoveolar and diffuse retinopathy, ethambutol and quinoline derivative retinal intoxication. The results show that both objective and subjective methods are sensitive and show some parallelism : both methods aid in distinguishing between foveolar and perifoveolar involvements; a possible comparison between the two tests is also possible.
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