[Manual small incision cataract surgery: Experience of a regional eye care service in Togo]. / La chirurgie de la cataracte à petite incision manuelle : experience d'un service régional de soins oculaires au Togo.

In order to fight against blindness in the central region of Togo, a project was implemented in a partnership between the Ministry of Health and an international Non-Governmental Organization: the Swiss Red Cross. Cataract surgery underwent an annual audit of the research-action type, in order to improve the functional results of patients. One of the recommendations of these audits was the introduction of manual small incision surgery in place of the classic extracapsular technique. This study had for its objective to evaluate the functional results and follow-up of patients undergoing the new technique compared with quality standards of cataract surgery according to the World Health Organization. This study was carried out by retrospective analysis of records and operative reports of patients over twenty years of age undergoing manual small incision cataract surgery from June 2012 to June 2015. Out of a total of 1292 patients undergoing cataract surgery in the five districts covered by the project during the same period, 1003 patients met the inclusion criteria (77.63 %). Among the 1003 cases, 504 (50.25 %) were male, while 499 (49.75 %) were female. The overall mean age was 62 years. The cataract was total in 84.65 % of cases and partial in 15.35 % of cases where visual acuities were quantifiable. Postoperative complications were dominated by corneal edema (22 %). On the first postoperative day, the good results (visual acuity≥3/10), the average results (visual acuity between 3/10 and 1/10) and the poor results (visual acuity<1/10) were respectively 41.2 %, 50.60 % and 8.2 % without optical correction, changing to 64.40 %, 28.90 % and 6.70 % after optical correction. Between the first and third week, 855 patients (85 %) were seen again. The good, average and poor results were respectively 61.90 %, 35.70 % and 2.40 % without correction, going to 85.30 %, 12.70 % and 2 % after optical correction. Among the 85.30 % good results, 53 % had a visual acuity≥5/10. Residual ametropias are the main cause of poor functional results and the introduction of biometry can contribute to their improvement. Cataract surgery through a well-controlled manual small incision is a promising alternative to the technique of choice, phacoemulsification, which is not yet widely accessible in our low-income countries.

[OCT topographic characteristics of the optic nerve in patients clinically suspected to have large optic disc cupping in Togo]. / Les caractéristiques topographiques à l'OCT du disque optique chez des patients cliniquement suspects de grande excavation papillaire (GEP) au Togo.

PURPOSE: To describe topographic characteristics of optic discs clinically suspected of large cupping. MATERIALS AND METHODS: This is retrospective study conducted from the January 2 to December 31 on the OCT registry and data base of a private ophthalmologic center in Lomé (Togo). We included records of patients with large cupping - CDR (cup-to-disc ratio) ≥ 0.4 -clinically observed and having undergone OCT-optic disc analysis. RESULTS: Three hundred and thirty-five patients (619 eyes) were studied, with a mean age of 41.87 years±17.51 years [6 years and 80 years] and a sex-ratio of 1.01 with a slight female predominance. The mean clinical CDR was 0.51±0.126 [0.4 and 0.9] (95 % CI [0.503 to 0.531]). The clinical CDR was ≥ 0.7 in 7.75 % of cases. The mean neuroretinal rim area was 1.63±0.43 mm2 [0.34 and 2.85 mm2]. The mean cup area was 1.43±0.54 mm2 [0.13 and 4.29 mm2], and the mean cup volume 0.47±0.28 mm3 [0.01 and 1.72 mm3]. The mean global CDR on OCT was 0.46±0.13 [0.21 and 0.87], of which 30.85 % (191 cases) had CDR <0.4. The CDR on OCT was >0.7 in 40 (6.46 %) eyes vs. 48 (7.75 %) eyes on clinical examination. CONCLUSION: On the average, optics discs exhibit large size and large cup volume. Topographic evaluation of the optic disc by the means of OCT offers important data and gives way to etiological research of large cupping in the black African.

[Tropical endemic limbo-conjunctivitis (TELC) and allergic management: a preliminary study in Togolese children]. / Limbo-conjonctivite endémique des tropiques (LCET) et prise en charge allergologique : étude préliminaire chez l'enfant togolais.

PURPOSE: To study the impact of certain allergens on the manifestations of tropical endemic limbo-conjunctivitis (TELC) in Togolese children. METHODS: This is a 3-year prospective study of 36 Togolese children with acute recurrences of TELC after 1 to 5 months of remission. Skin prick tests were conducted with five perennial respiratory allergens (dust mites, paper mites, roaches, dog and cat, grass pollen) and three food allergens (egg, peanut, shrimp). The reactions were compared to a negative control (saline solution) and a positive control (histamine or codeine sulfate). Length of remissions between acute exacerbations before and after allergy testing were noted. RESULTS: Thirty-five children were polysensitive. Individual allergens were: dust mites (83.3%), followed by cockroach (72.2%), shrimp (61.1%), peanuts (55.6%), eggs (44.4%), the cat and/or dog dander (38.9%), and grass pollen (22.2%). The rate of remission prior to allergy testing was 77.8% within 2 months after treatment of an exacerbation; with allergy management, 55.5% of patients experienced remission beyond 1 year. DISCUSSION: The literature reports that TELC is caused by multiple antigens. The clear predominance of respiratory and food allergens may lead to a new pathway for managing TELC in Togolese children. CONCLUSION: Allergy testing is of great importance for patients with frequent acute exacerbations of TELC.

[Refractive errors among schoolchildren in the central region of Togo]. / Amétropies en milieu scolaire dans la région centrale du Togo.

Untreated refractive errors represent the main visual impairment in the world but also the easiest to avoid. The goal of this survey is to use clinical and epidemiological data to efficiently plan distribution of corrective glasses in a project supported by the Swiss Red Cross in the central region of Togo. To achieve this goal, 66 primary schools were identified randomly in the catchment area of the project. The teachers at these schools were previously trained to test visual acuity (VA). The schoolchildren referred by these teachers were examined by eye care professionals. The schoolchildren with ametropia (VA≤7/10 in at least one eye) underwent cycloplegic autorefraction. Of a total of 19,252 registered schoolchildren, 13,039 underwent VA testing by the teachers (participation rate=68%). Among them, 366 cases of ametropia were identified (prevalence about 3%). The average age of the schoolchildren examined was 10.7±2.3years, with a sex ratio of 1.06. Autorefraction, which was performed for 37% of the schoolchildren with ametropia allowed them to be classified into three groups: hyperopia (4%), myopia (5%) and astigmatism of all types (91%). Regardless of the type of ametropia, the degree of severity was mild in 88%. The results of this survey have highlighted the importance of the teachers' contribution to eye care education in the struggle against refractive errors within the school environment, as well as helping to efficiently plan actions against ametropia.