[Contribution of transverse axial tomography with integrated calculator to ophthalmological and neuro-ophthalmological diagnosis].
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Biomedical subjects
Publications and source records attributed to M Massin.
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An inquiry conducted with French ophthalmologists shows an incidence of retinal detachment in the French population of about 8 in 100000, 13 to 14p. 100 of the cases were bilateral.
We have retrospectively studied the intraoperative and early postoperative complications of 466 radial keratotomies. These complications included: microperforations and macroperforations, incisions into the optical zone, and early bacterial corneal ulcers and endophthalmitis.
The so-called R.K. classic technique gives good results for myopias under 5 diopters. We have performed different modifications of the technique for the 8 incisions--optical zone 3 mm R.K. 8 incisions--O.Z. 3 mm. Downhill incision direction or "American technique" incisions (from the O.Z. towards the limbus). 8 incisions--O.Z. 3 mm + a deepening of 20 microns from a 6 mm O.Z. Repeat operations (Stan Franks Backcutting technique or addition of incisions). 8 incisions--O.Z. 3 mm. Uphill incision direction or "Russian technique" (from the limbus towards the optical zone). This study was carried out with 134 R.K. and shows that we get best results for myopias between 5 to 7 diopters, with the last technique (Uphill incision direction).
We performed 11 epikeratophakias with a congelated lenticule (H. Kaufmann and M. Mac Donald technique) for aphakic post-traumatic eyes. The results have been good for the cicatrisation, and the visual result.
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The X-ray scanning symptoms of dysthyroidal ophtalmopathy are so typical that they are enough to make the diagnosis in most of cases. Their determination through the FEMEN system increases the sensitivity of the method. The investigation of 60 cases of oculomotor palsies with a FEMEN score greater than 10 confirms that they are certainly or probably subsequent to an endocrinopathy in 93% ot the cases.
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