[Spectral-domain optical coherence tomography in anterior segment imaging: the 3rd dimension]. / Tomographie par cohérence optique en domaine spectral du segment antérieur: la 3e dimension.

PURPOSE: Anterior segment imaging using optical coherence tomography (OCT) time domain technology has been used for many years. When it appeared, it was a promising technique in the analysis of the anterior segment, making it possible to reach a definition of the ocular structures comparable with histology. Now with new-generation OCT, it is possible to perform high-definition and three-dimensional imaging. MATERIAL AND METHOD: A 3D OCT-1000 (Topcon, Tokyo, Japan) parameterized to obtain high-definition and 3D imaging of the iridocorneal structures. RESULTS: We present a collection of images obtained using this technique. DISCUSSION: Based on a very sophisticated tool for retinal and glaucoma imagery, it is now possible to obtain very-high-quality imaging of the anterior segment, which, with its great versatility, increases the value of acquiring this type of device. CONCLUSIONS: The potential of 3D OCT-1000, already a very good exam for the posterior segment, and the only one to perform anterior segment three-dimensional imaging in a single acquisition, should not be neglected.

[Congenital glaucoma: future of vision and pressure. Results of an 11-year study]. / Glaucome congénital : devenir visuel et pressionnel. Résultats d'une étude sur 11 ans.

AIM: To study the future of vision and IOP in congenital glaucoma. MATERIAL AND METHODS: We studied 33 eyes from 20 separate patients divided into two groups: group one consisted of 19 eyes with isolated trabeculodysgenesis and group two 14 eyes associated with Sturge-Weber-Krabbe syndrome, angiomatosis, or Peters syndrome. All patients underwent filtering surgery between 1995 and 2006. We studied a number of different forms of surgery; visual acuity after amblyopia treatment (> or =5/10, good; 4/10-2/10, average; < or =1/10, poor), objective refraction, and intraocular pressure (<16 mmHg, good; > or =16 mmHg, poor). RESULTS: We found that 54.8% of the patients had visual acuity 5/10 or greater and 44.2% between 4 and the ability to perceive light. Objective refraction was emmetropic in 19.4% (group 1, 60%; group 2, 40%), myopic in 53.8% (group 1, 28.5%; group 2, 71%), and hyperopic in 26.9% of cases (100%, group 1). All patients underwent surgery (45.5% deep sclerectomy and 54.5% trabeculectomy); 39.4% of the patients underwent more than one type of surgery (the number of operations is a prognosis factor for visual acuity). IOP was less than 19 mmHg in 87.9% of eyes. DISCUSSION: Visual acuity, refractive errors, and IOP depend on the type of congenital glaucoma. Isolated trabeculodysgenesis seems to give a better prognosis. CONCLUSION: If early diagnosis and treatment occur, visual acuity that is 5/10 or less can be expected for more than 50% of patients; therefore their visual future seems to be better.