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ADEVICE has been developed which adequately immobilizes the head and body of small primates in order that slit-lamp and ophthalmoscopic examinations may be performed. Retraction of the lids and fixation of the globe have never thus far been necessary, because these animals, unless antagonized, hold their eyes open and maintain fairly steady fixation. Wide exposure and rigid fixation of the globe may, however, be accomplished with a speculum and forceps if required. This procedure may perhaps be necessary for fundus photography.
The box, measuring 7 by 6 by 13 in. (17.8 by 15 by 33 cm.), constructed of galvanized iron, is hinged on and locked on the side with a draw-bolt catch. The circular opening at the end of the box is encased in a Plexigas collar, so that the animal's neck is not exposed and cannot be injured by sharp edges. A cup-shaped plate (A) is mounted at the
BAHN GC, BROWN DVL, FLECK H. RESTRAINING DEVICE FOR OPHTHALMOSCOPIC AND BIOMICROSCOPIC EXAMINATION OF SMALL PRIMATES. AMA Arch Ophthalmol. 1953;50(3):344-345. doi:10.1001/archopht.1953.00920030351013