Canadian Medical Guide > Analytical, Diagnostic and Therapeutic Techniques and Equipment > Diagnosis > Diagnostic Techniques and Procedures > Diagnostic Techniques, Ophthalmological Terms and Definitions

Diagnostic Techniques, Ophthalmological

Medical Definition:	Methods and procedures for the diagnosis of diseases of the eye or of vision disorders.
Guide Notes:	diag of eye dis or vision disord; GEN or unspecified; prefer specifics; DF: DIAG TECHNIQUES OPHTHALMOL
Previously Indexed:	specific technique (1966-1997)

Diagnostic Techniques, Ophthalmological Categories.

	Corneal Topography - Measurement of the anterior surface of the cornea, its curvature and shape. It is used often to diagnose keratoconus and other corneal diseases, and corneal changes after keratotomy and keratoplasty. A significant application is in the fitting of contact lenses. In performing corneal topography, many different techniques can be employed: keratometry, keratoscopy, photokeratoscopy, profile photography, computer-assisted image processing, videokeratography, etc.
	Electroretinography - Recording of electric potentials in the retina after stimulation by light.
	Eye Movements - Voluntary or reflex-controlled movements of the eye.
	Flicker Fusion - The point or frequency at which all flicker of an intermittent light stimulus disappears.
	Fluorophotometry - Measurement of light given off by fluorescein in order to assess the integrity of various ocular barriers. The method is used to investigate the blood-aqueous barrier, blood-retinal barrier, aqueous flow measurements, corneal endothelial permeability, and tear flow dynamics.
	Gonioscopy - Examination of the angle of the anterior chamber of the eye with a specialized optical instrument (gonioscope) or a contact prism lens.
	Ophthalmodynamometry - Measurement of the blood pressure of the retinal vessels. It is used also for the determination of the near point of convergence (CONVERGENCE, OCULAR). (From Cline, et al., Dictionary of Visual Science, 4th ed)
	Ophthalmoscopy - Examination of the interior of the eye with an ophthalmoscope.
	Tonometry, Ocular - Measurement of ocular tension (INTRAOCULAR PRESSURE) with a tonometer. (Cline, et al., Dictionary of Visual Science, 4th ed)
	Vision Tests

Diagnostic Techniques, Ophthalmological Medical Definitions and Terms

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