Keywords

#jackson_cross_cylinder

Jackson cross cylinder

Ophthalmic instrument

The Jackson cross cylinder (JCC) is an instrument used by ophthalmologists, orthoptists and optometrists in their routine eye examination, particularly in determination of corrective lens power in patients with astigmatism. It is also used for testing near point of the eye.

Fri 16th

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Jackson cross cylinder Astigmatism Cylindrical lens Phoropter Edward Jackson (ophthalmologist) Subjective refraction Astigmatism (optical systems) Stokes lens List of instruments used in ophthalmology Horatio Nelson Jackson
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