The roundness deviation measurement of vertical center Haas Mini Mill

A guide to the Measurement of Roundness

1 Controlling roundness improves performance From power stations to power tools, from the smallest watch to the largest car, all contain round components. In any manufacturing facility it will be seen that machines are producing round or cylindrical components. It is a function of engineering to determine and specify how round they must be; it is a function of metrology to verify if the specifi...

Dissociated Vertical Deviation

DOS Times Vol. 12, No. 3 September, 2006 Dissociated Vertical Deviation (DVD) is one of the least understood forms of strabismus. It was first described by Stevens as double vertical strabismus, other common names given to this anomaly are, Alternating hyperphoria (Crone), Anaphoria / anatropia (Stevens), Periodic vertical squint (Anderson), Strabismus sursoadductorius (Cords). The term "Dissoc...

Management of Dissociated Vertical Deviation.

Vertical fusional vergence: the key to dissociated vertical deviation.

OBJECTIVES To test the previous findings of Enright that disparity-induced vertical vergence is mediated primarily by the oblique muscles, and to relate this normal eye movement pattern to the eye movement pattern seen in subjects with dissociated vertical deviation. METHODS Sixteen normal volunteers underwent 55 measurements of the cycloversion associated with prism-induced vertical vergence...

Vertical gaze palsy with skew deviation.

With the advancement of neuroradiology, clinical localization followed by radiology, had made neurology more interesting. Vertical gage palsy as presentation cerebrovascular disease is not so common. Vertical gaze palsy usually localizes the lesion to dorsal mid brain. A 56 years male patient presented with sudden onset vertigo, diplopia, transient loss of consciousness and sways toward right s...