Number of rhegmatogenous retinal detachment treatments in metropolitan France from January to June in the period 2017–2020
| Months | 2017 | 2018 | 2019 | 2020 | Changes in the number of procedures 2020 vs 2019 |
| January | 1525 | 1531 | 1774 | 1815 | +2.31% |
| February | 1340 | 1391 | 1447 | 1533 | +5.94% |
| March | 1682 | 1674 | 1825 | 1393 | −23.67% |
| April | 1630 | 1550 | 1868 | 1019 | −45.45% |
| May | 1617 | 1708 | 1795 | 1430 | −20.33% |
| June | 1750 | 1875 | 1737 | 1806 | +3.97% |
| July | 1489 | 1708 | 1899 | 1795 | −5.48% |
| Total | 11 033 | 11 437 | 12 345 | 10 791 | −12.59% |
Bolded values mean a statistically significant difference between 2020 and 2020.