[Descemet's membrane detachment as a complication of cataract surgery]. / Desprendimiento postquirúrgico de la membrana de Descemet (a propósito de un caso).

CASE: A case of Descemet's membrane detachment after cataract surgery successfully treated with an injection of sulphur hexafluoride 20% is presented. DISCUSSION: Possible pathogenic mechanisms and available therapeutic options are discussed. We highlight the need for prophylactic measures and the importance of an early detection to prevent further damage.

A curious fact: Photic sneeze reflex. Autosomical dominant compelling helio-ophthalmic outburst syndrome. / Curiosidad: reflejo de estornudo fótico. Síndrome helio-oftálmico de estornudos compulsivos autosómico dominante.

OBJECTIVE: To assess ocular involvement in the pathophysiology of autosomal dominant compelling helio-ophthalmic outburst syndrome (ACHOOs). METHODS: An interview was conducted with a Caucasian family that showed clinical features of ACHOOs. Twelve of them had photic reflex and were recruited. A complete eye evaluation was made. RESULTS: A dominant autosomal inheritance with mild penetrance was demonstrated, with 67% of the studied subjects showing some degree of prominent corneal nerves. No other eye changes were found. CONCLUSIONS: Prominent corneal nerves may be associated with ACHOOs. The other eye structures studied do not seem to play a role in ACHOOs. Further studies are needed to understand the physiology of the ACHOOs.

Acquired night blindness due to bad eating patterns.

We report a case of acquired night blindness in a developed country (Spain) without risk factors for nutritional deficiency disease or family history of hereditary retinal disease. A 76-year-old woman presented with acquired night blindness of 6-month progression. After a thorough inquiry about eating patterns she becomes suspicious of vitamin A low dietary intake, which is analytically confirmed and successfully treated. Despite being very uncommon in our environment and even more in patients without digestive problems, in a patient reporting acquired night blindness vitamin A deficiency should not be discarded until eating patterns have been investigated. It might be especially relevant in certain socioeconomic situations and eating disorders such as bulimia or anorexia nervosa.

[Iris microhaemangiomas: presentation of a case]. / Microhemangiomas iridianos: a propósito de un caso.

CASE REPORT: A 74 year-old woman present with blurry vision of 12 hour duration in her right eye, and with no other symptoms. Biomicroscopic examination revealed a 3 mm hyphaema in her right eye and multiple nodular structures in the pupillary margin of both eyes. DISCUSSION: Iris tufts are vascular anomalies unrelated to ischaemia that must be included in the differential diagnosis of spontaneous hyphaema.

Prevalence of pinguecula and pterygium in a general population in Spain.

PURPOSE: To determine the prevalence of pinguecula and pterygium and to investigate their associations in a general adult population in North-Western Spain. METHODS: An age-stratified random sample of 1155 subjects ≥ 40 years was selected in O Salnés (Spain). From 937 eligible subjects, 619 (66.1%) participated (mean age (SD): 63.4 (14.5) years, range: 40-96 years, 37.0% males). An interview to collect history of systemic diseases and lifestyle details and a comprehensive ophthalmic evaluation in which pinguecula and pterygium were recorded was carried out. The prevalence of pinguecula and pterygium and their relationship with lifestyle factors and ocular and systemic diseases was investigated. RESULTS: The prevalence of pinguecula was 47.9% (95% confidence interval (CI): 43.9-51.9). This prevalence increased significantly with aging (P = 0.002) and was higher in men (56.4%; 95% CI: 50.0-62.7) than in women (42.7%; 95% CI: 37.8-47.8) (P=0.001). The prevalence of pterygium was 5.9% (95% CI: 4.3-7.9). This prevalence also increased significantly with aging (P = 0.005) and was 4.8% (95% CI: 2.6-8.4) in men and 6.5% (95% CI: 4.5-9.3) in women (P = 0.346). After controlling for age and sex, pinguecula was associated with alcohol intake (adjusted odds ratio (OR(a)): 3.08; 95% CI: 1.60-5.95), pterygium with fluorescein staining (OR(a): 2.64; 95% CI: 1.08-6.46) and both disorders with outer activity (OR(a): 2.07; 95% CI: 1.36-3.15 and 2.28; 95% CI: 1.04-4.98, respectively). CONCLUSIONS: Pinguecula is far more common than pterygium. Alcohol consumption is strongly associated with pinguecula. Fluorescein staining is highly prevalent in subjects with pterygium. Both disorders increase with age and are associated with outer activity.