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Clinical science
Incidence of rhegmatogenous retinal detachment in France from 2010 to 2016: seasonal and geographical variations
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  • carlos Sevillano Torrado, Eloy Viso
    Published on: 21 July 2022
  • Published on: 21 July 2022
    Dr
    • carlos Sevillano Torrado, Ophthalmologist Hospital Complex of Pontevedra
    • Other Contributors:
      • Eloy Viso, Ophthalmology Chief

    In your interesting paper dealing with the incidence of rhegmatogenous retinal detachment in France, you report the highest incidence rate so far together with Gout et al 1. It is almost twice as high as the incidence found in our area 2. You also report that this incidence was highest in Guadeloupe (28.30±2.74 per 100000 population) and lowest in French Guiana (15.51±3.50 per 100000 population).

    Peters 3 investigated the incidence of RRD in black people and found that it was much lower (0.46/100,000 inhabitants) than in whites. Foos et al. 4 also found that there were no differences in the number of breaks or the proportion/ percentage of vitreous detachments between black and white people, suggesting a stronger adherence in their retinal pigmentary epithelium in the former. Given the fact that black subjects present higher levels of melanin, they have greater resistance against solar radiation, in the same way that they present a lower incidence of non-melanoma skin cancer due to this protective factor 5. Similarly, there is a lower risk of RRD in very dark-colored iris 6 subjects, possibly due to the same reason, as a smaller amount of solar radiation, which has been found to be associated with RRD 7 enters the eye. Taking into account that 70-90% of the population in the French Antilles are mulattoes or creoles (source: indexmundi.com), the lower incidence detected in this geographical location is not surprising. However, we encourage the authors to investigate...

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    Conflict of Interest:
    None declared.