Aberration correction with soft contact lens: is the postlens tear film important?
The postlens tear film can introduce discernable amounts of optical degradation in the lens-wearing eye. However, the amount of this effect is likely to be small compared with other sources, and benefits afforded by the use of aberration-corrected soft contact lenses should not be severely affected.
Pregnancies complicated by HG had a similar risk of twin pregnancy, and a lower risk of early pregnancy failure compared to controls. In the absence of vaginal bleeding, there was no increase in GTD in women with HG. We conclude that an ultrasound scan is not clinically necessary in women presenting with HG, other than for maternal reassurance.