| Date | Event | Description |
|---|---|---|
| 15 June 2020 | New search has been performed | Issue 6 2020: An updated search yielded results from one new study. The overall finding that whether giving vitamin A or fish oil, or both to people with retinitis pigmentosa delays the continued worsening of vision remains uncertain. |
| 15 June 2020 | New citation required but conclusions have not changed | Issue 6 2020: One new study (Hoffman 2014) and two new ongoing studies (CTRI/2016/01/006497NCT00004827) added. |
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