Dr William 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.
Inflammation: the body's reaction to trauma, infection, or a foreign substance, often associated with pain, heat, redness, swelling, and/or loss of function.( - Dr Boothe)
Dr Boothe: Keratitis: inflammation of the cornea.
Keratomileusis: carving of the cornea to reshape it.
Dr William Boothe
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 Boothe )
Keratotomy: a surgical incision (cut) of the cornea.
Dr Boothe
Iris: the colored ring of tissue suspended behind the cornea and immediately in front of the lens.( Dr William Boothe )
Dr Boothe: Dry Eye Syndrome: a common condition that occurs when the eyes do not produce enough tears to keep the eye moist and comfortable. Common symptoms of dry eye include pain, stinging, burning, scratchiness, and intermittent blurring of vision.
Dr William Boothe: Wavefront: a measure of the total refractive errors of the eye, including nearsightedness, farsightedness, astigmatism, and other refractive errors that cannot be corrected with glasses or contacts.