It happens when the sun is shining from top. Its beams are reflected from the dashboard to the windshield and into my eyes. You can see from the picture that in such situation a driver can't see almost nothing and an accident can happen.
Is there anything I can do to remove the reflection?

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1989 230E, 8v, 166.000 km, updated to 94/95 trunk & hood
2002 Daewoo Nexia 50.000 km
Sold:
1987 VW Jetta GLE 16V, Recaro seats
1982 Volvo 240 DL (lovely car!)
and few more american cars.