Dr William Boothe
Snellen Visual Acuity Chart: one of many charts used to measure vision.
Radial Keratotomy: commonly referred to as RK; a surgical procedure designed to correct myopia (nearsightedness) by flattening the cornea using radial cuts.( - Dr Boothe)
Dr William Boothe: Hyperopia: the inability to see near objects as clearly as distant objects, and the need for accommodation to see distant objects clearly.
Laser Keratome: a laser device used to create a corneal flap
Dr Boothe
Diopter: the measurement of refractive error. A negative diopter value signifies an eye with myopia and positive diopter value signifies an eye with hyperopia. ( Dr William Boothe )
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Presbyopia: the inability to maintain a clear image (focus) as objects are moved closer. Presbyopia is due to reduced elasticity of the lens with increasing age.
Dr William Boothe
Laser: the acronym for light amplification by stimulated emission of radiation. A laser is an instrument that produces a powerful beam of light that can vaporize tissue.( Dr Boothe )
Dr William Boothe: Visual Acuity: the clearness of vision; the ability to distinguish details and shapes.
Dr Boothe: Acuity: clearness, or sharpness of vision.
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