<unk>  is the measurement of the female pelvis. It can theoretically identify cephalo-pelvic disproportion, which is when the capacity of the pelvis is inadequate to allow the fetus to negotiate the birth canal. However, clinical evidence indicate that all pregnant women should be allowed a trial of labor regardless of<unk>  results.
Pelvimetry
Microperimetry
Dosimetry
Retinal vessel analysis
Scanning laser ophthalmoscopy
Humphrey visual field analyser
String galvanometer
Exophthalmometer