Mortality in patients with central retinal vein occlusion.

Purpose: To assess mortality in patients with central retinal vein occlusion (CRVO).

Design: Registry-based cohort study.

Participants And Controls: Four hundred thirty-nine photographically verified CRVO patients and a control cohort of 2195 unexposed subjects matched by age and gender and alive on the date CRVO was diagnosed in the corresponding case.

Comorbidity in patients with branch retinal vein occlusion: case-control study.

Objectives: To evaluate comorbidity before and after the diagnosis of branch retinal vein occlusion to determine whether it is a consequence of arterial thickening and therefore could serve as a diagnostic marker for other comorbidities and to evaluate the risk factors for the development of such occlusion.

Design: Case-control study with prospective follow-up data from Danish national registries.

Setting: Four secondary referral centres covering about 80% of the Danish population (4.

Oligocone trichromacy: clinical and molecular genetic investigations.

Purpose: To describe the phenotype and genotype of patients with a diagnosis of oligocone trichromacy (OT).

Methods: Six unrelated patients had a detailed ophthalmic examination including color vision testing, a Goldmann visual field test, fundus photography, and full-field electroretinography (ffERG). Five patients also underwent multifocal (mf)ERG, autofluorescence recording, and optical coherence tomography (OCT).

Mortality in patients with branch retinal vein occlusion.

Purpose: To assess the impact of branch retinal vein occlusion (BRVO), a condition related to arteriolar wall thickening, as a prognostic marker of mortality.

Design: Long-term follow-up study comparing cases with background population.

Participants: Patients diagnosed with BRVO.

Unilateral diabetic macular oedema secondary to central retinal vein congestion.

Purpose: To describe two cases of strictly unilateral diabetic retinopathy with macular edema where the precipitating factor appears to have been retinal venous congestion.

Methods: Retrospective interventional case study.

Results: Examination of fundus photographic records demonstrated generalized venous dilation in the affected eyes years in advance of the development of unilateral diabetic macular edema.