PurposeTo study the development over time of the age‐ and sex‐standardized incidence of rhegmatogenous retinal detachment (RRD) in Denmark.MethodsRegistry study, based on the Danish National Patient Registry data. End‐point: Individuals undergoing the first surgery for RRD.ResultsDuring 2000–2016 we identified 11 769 individuals with a primary RRD surgery in either eye. The age‐ and sex‐standardized incidence rate of RRD increased by more than 50% during the study period. We found a significant increase in this incidence rate for both men and women older than 50 years, and in men, but not in women, younger than 50 years (p < 0.001). However, the increase of primary RRD surgery during the study period was most pronounced in men aged 50 years or older, where the rate of increase was 1.7 ± 0.1 cases per 100 000 person‐years per year (p < 10−11).ConclusionThe incidence of RRD is increasing, and this increase is primarily driven by men aged 50 years or older.
Purpose To evaluate Damato Multifixation Campimetry Online (DMCO), a free-of-charge internet-based visual field test. DMCO exists in three versions: DMCO BASIC, DMCO STANDARD, and DMCO ADVANCED. The main focus was (i) to investigate the sensitivity and the specificity of the existing DMCO versions in the detection of glaucomatous visual field loss and (ii) to define and evaluate algorithms for the interpretation of DMCO results. Methods The study design was an evaluation of a diagnostic test and included 97 individuals performing DMCO and whiteon-white perimetry. Interpretation algorithms were devised to define abnormality, and these were evaluated using the Glaucoma Staging System as gold standard. Receiver operating characteristic (ROC) curves and area under the ROC (AUC) were calculated. Results AUCs from 15 algorithms ranged from 0.79 to 0.90. The most promising algorithm combined results from two successive DMCO STANDARD tests. The sensitivity was highly dependent on the severity of glaucoma. Hence, for eyes with mild, moderate, advanced, and severe glaucoma, the DMCO test demonstrated a sensitivity of 11.8, 71.4, 100, and 100%, respectively. The specificity was as high as 98.1%. Median duration per eye to complete the DMCO STANDARD test was 86 s for the control group and 125 s in participants with glaucoma. Conclusions DMCO shows promise as a freeof-charge online tool to identify glaucomatous visual field defects in a preselected population. Ongoing studies are evaluating the use of DMCO in a nonselected population.
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