New formulation technology to boost sun protection.

Objective: As every skin type worldwide is concerned by photoprotection, with consumers preferring cosmetic elegant and efficient sunscreen products, we aim at developing the most performant and desirable sun care products.

Methods: We selected an interesting polymer, abbreviated AAHCP and designed scanning electron cryomicroscopy (cryoSEM), small angle and wide angle X-ray scattering and confocal laser scanning microscopy studies to understand its behaviour in solution and in simplex sun care formulations. This allowed us to develop innovative sunscreen formulation technology that was demonstrated by in vitro and in vivo photoprotection methods.

Aging of cornstarch particles suspended in aqueous solvents at room temperature.

Starch suspensions are often used as model systems to demonstrate extreme shear-thickening effects. We study the aging of cornstarch particles in aqueous suspensions at room temperature by granulometry and rheological measurements. When starch is diluted in glycerol, no long-term changes are observed.

Impact of the Wetting Length on Flexible Blade Spreading.

We study the spreading of a Newtonian fluid by a deformable blade, a common industrial problem, characteristic of elastohydrodynamic situations. Here, we consider the case of a finite reservoir of liquid, emptying as the liquid is spread. We evidence the role of a central variable: the wetting length l_{w}, which sets a boundary between the wet and dry parts of the blade.

A novel rheo-optical device for studying complex fluids in a double shear plate geometry.

A new rheo-optical shearing device was designed to investigate the structural evolution of complex material under shear flow. Seeking to keep the area under study constantly within the field of vision, it was conceived to produce shear flow by relying on the uniaxial translation of two parallel plates. The device features three modes of translation motion: step strain (0.

[Extent of visual impairment in a population attending an ophthalmology center in Africa. Findings in 828 cases at the Tropical Ophthalmology Institute of Africa in Bamako, Mali].

The purpose of this prospective observational study was to evaluate the extent of visual impairment in a socially and professionally active population attending the Tropical Ophthalmology Institute of Africa (IOTA). Thanks to high recruitment rate at the IOTA, which is the third reference eye centre, a total of 828 patients ranging from 18 and 50 years of age and consulting for the first time were included between February 1 and May 4, 2003. Each patient underwent a thorough ocular examination.

[Adenoid cystic carcinoma of the lacrimal gland in a 14-year-old girl].

The discovery of unilateral exophthalmia requires multidisciplinary care made all the more difficult in the case of a 14-year-old girl living in a tropical environment. The child, C.A.

[Ocular disorders causing blindness in working-age outpatients: a prospective study at the African Institute of Tropical Ophthalmology (IOTA, Bamako, Mali)].

Unlabelled: The objective of this study was to determine the different groups of ocular disorders causing low vision or blindness among working-age patients consulting at the African Institute of Tropical Ophthalmology (IOTA) in Bamako, Mali.

Methods: This prospective study took place from 1 February through 8 April, 2003, at IOTA. It included all new patients aged between 18 and 50 years, regardless of whether they worked, but excluding students.

[Plea for a graft].

With the promulgation of the "Bioethics" laws in 1994 in France, the Etablissement français des Greffes was endowed with the task of defining the principles controlling human tissue grafts in France. These laws require a precise control of all material and human input involved in each step of the grafting process. Organ removal from human cadavers by the ophthalmologist, graft preservation, validation of organ banks and recipient grafting by the surgeon are some of the many steps which must follow precise rules of good practices.

[Unusual case of bilateral optic neuritis in Lyme neuroborreliosis].

The most common manifestations of Lyme disease are neurologic and rheumatologic, but ophthalmologic lesions can also occur and may even be dominant. The authors describe a case of bilateral optic neuropathy associated with Lyme borreliosis that quickly led to near-total blindness. In addition to a loss in visual acuity and field bilateral papillary edema was documented by angiofluorography.

[Harada's disease. Report of a case].

Harada's disease is a uveo-meningitis syndrome characterized by meningo-encephalic manifestations preceded by bilateral posterior uveal lesions. The etiology of Harada's disease is still unclear but it probably involves an auto-immune reaction to melanocytes. This mechanism would account for the high incidence of Harada's disease in dark-skinned patients.

[Xerophthalmia: current data].

Xerophthalmia is a term covering a range of ophthalmologic manifestations due to vitamin A deficiency. This condition occurs in preschool children in tropical regions affected by protein-caloric malnutrition. Clinical manifestations of the disease have been summarized in the 1974 five-grade WHO classification.

[Ocular cysticercosis].

Ocular cysticercosis results from development of Taenia solium larvae, Cysticercus cellulosae, in the eye. This condition is observed all over the world but is particularly common in developing countries. The eye, like nervous system and muscle tissue, is a prime location for parasitic development because of its rich vascularization.