Galezowski has had made an ophthalmo-therometer for measuring the temperature of the eye in the living. The bulb is arranged to fit the lower cul-de-sac, where is is allowed to remain three minutes. The normal temperature of the lower cul-de-sac varies from 35.7 to 36.2.
Reference:Arch Ophthalmol. 1898;27:643.
A look at the past. . .. Arch Ophthalmol. 1999;117(6):850. doi:10.1001/archopht.117.6.850