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Words related to astigmatism
a·stig·ma·tism
A a -
ametropia
loss of ability to focus images on the retina, caused by an imperfection in the refractive function of the eye -
anastigmat
a lens or system of lenses designed to be free of astigmatism -
astigmatoscope
an instrument for determining the presence and severity of astigmatism. -
astigmometer
an apparatus for measuring the degree of astigmatism. -
hard lens
a contact lens of rigid plastic or silicon, exerting light pressure on the cornea of the eye, used for correcting various vision problems including astigmatism. -
keratoconus
a degenerative condition characterized by conical protrusion of the cornea and irregular astigmatism.