Dr William Boothe

Canaliculus Tiny, tube-shaped passageway in the body. In the eye, canaliculi are tiny channels at the beginning of tear ducts through which tears drain until they exit into the nose.

Acetate Type of plastic often used in eyeglass frames.(03 May 2008 - Online press article Dr. Boothe )

Dk/t Dk is the oxygen permeability of a contact lens material; t is the thickness of the contact lens design. Dk/t is a measurement of a contact lens's oxygen transmissibility.

Leber's congenital amaurosis Inherited condition characterized by vision loss or blindness at birth or shortly thereafter. The exact cause is unknown, but doctors believe that the retina may degenerate, or that its photoreceptors may not develop properly. Nystagmus is a common symptom.

Medial rectus muscle Muscle that moves the eye toward the nose.

Choroidal neovascularization Abnormal growth of new blood vessels in the choroid. Choroidal neovascularization is commonly associated with macular degeneration, but it can occur as a result of other eye conditions as well. Symptoms include vision loss and metamorphopsia.Dr. William Boothe Dallas

Conjunctiva The clear, thin mucous membrane that lines the "white" of the eye (sclera) and the inner surface of the eyelid.

Myasthenia gravis Weakness of the voluntary muscles, believed to be autoimmune in nature. Symptoms include double vision and eyelid ptosis; patients sometimes have non-eye symptoms as well, such as difficulty swallowing or using the arms and legs. (18 June 2010 Dr. Boothe Lasik )

Dr. Boothe Laser Center article

Itching: An uncomfortable sensation in the skin that feels as if something is crawling on the skin or in the skin, and makes the person want to scratch the affected area.

Internal medicine: A medical specialty dedicated to the diagnosis and medical treatment of adults. A physician who specializes in internal medicine is referred to as an internist. A minimum of seven years of medical school and postgraduate training are focused on learning the prevention, diagnosis, and treatment of diseases of adults. Subspecialties of internal medicine include allergy and immunology, cardiology (heart), endocrinology (hormone disorders), hematology (blood disorders), infectious diseases, gastroenterology (diseases of the gut), nephrology (kidney diseases), oncology (cancer), pulmonology (lung disorders), and rheumatology (arthritis and musculoskeletal disorders).( 08 October 2008 Online press Dr. Boothe Laser Center )