RT Journal
A1 Minix MB, WIRTSCHAFTER JD, Cantor HE
T1 DIslocation of lens-diagnosis by ultrasonography
JF JAMA
JO JAMA
YR 1969
FD February 17
VO 207
IS 7
SP 1354
OP 1355
DO 10.1001/jama.1969.03150200120024
UL http://dx.doi.org/10.1001/jama.1969.03150200120024
AB To the Editor:— 
    The first diagnostic uses of ultrasonography in ophthalmology were described by Mundt and Hughes in 19561 and Oksala in 1957.2 Ultrasound has since been shown to be useful, diagnostically, in determining the axial length of the globe, localizing intraocular foreign bodies, and in identifying various intraocular and retrobulbar lesions.The history, theory, and techniques of ocular ultrasonography have been reviewed.3 Oksala first showed the value of ultrasound in the diagnosis of a posteriorly luxated lens4 and explored the effects of the lens on the ultrasound field; these included dispersion, higher absorption, and higher velocity than the surrounding ocular structures.5 He also demonstrated that multiple echoes may arise from a cataractous lens.6However, the ultrasonic diagnosis of anterior lens dislocation has not previously been reported. This may be of use when a cloudy cornea or anterior chamber make visual diagnosis difficult. This