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Optics of jackson cross cylinder | jackson cross cylinder power | how to use jackson cross cylinder | jackson cross cylinder technique |jackson cross cylinder definition | spherical equivalent of jackson cross cylinder | jackson cross cylinder principle | jackson cross cylinder optics | refraction jackson cross cylinder | properties of jackson cross cylinder

Cross cylinder examination (otherwise known as Jackson's cross cylinder) is an examination used for the final finetuning of the axis and strength of astigmatism after its determination through retinoscopy, stellate cycle or automatic refractometry.

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