The calculation of the two-loop corrections to the partial width of an intermediate-mass Higgs boson decaying into a pair of photons is reviewed. The main focus lies on the electroweak (EW) contributions. The sum of the EW corrections ranges from -4\% to 0\% for a Higgs mass between 100 GeV and 150 GeV, while the complete correction at two-loop order amounts to less than \pm 1.5\% in this regime.

PACS numbers: 12.15.Ji, 12.15.Lk, 12.38.Bx, 14.80.Bn