slit lamp
Noun: A specialized medical instrument used in ophthalmology. It consists of a high-intensity light source that can be focused to shine a very thin, bright beam of light (a "slit") into the eye. This beam, combined with a binocular microscope, allows a detailed, magnified examination of the structures at the front of the eye (anterior segment) such as the cornea, iris, and lens, as well as parts of the back of the eye (vitreous and retina).
The term "slit lamp" is a compound noun. It is used as a singular countable noun. It refers specifically to the complete instrument. * The slit lamp is an essential tool for a comprehensive eye exam. * The ophthalmologist used a slit lamp to check for corneal abrasions. * A slit lamp examination revealed early signs of cataract.
- "During your eye check-up, the doctor will examine your eyes with a slit lamp."
- "The slit lamp's bright beam helps illuminate and magnify the internal structures of the eye."
- "Diagnosis of glaucoma often involves assessment of the optic nerve head via slit lamp biomicroscopy."
- Slit Lamp Biomicroscopy: This is the formal name for the examination procedure performed using the instrument. It emphasizes the use of the microscope ( for living tissue, for viewing small structures).
- Slit lamp biomicroscopy is the standard method for evaluating the anterior chamber of the eye.
- The instrument is often part of a longer noun phrase describing a specific type of examination or finding.
- The slit lamp findings were documented in the patient's chart.
- Biomicroscope: Another, more technical term for the slit lamp, highlighting its microscopic function.
- Slit-lamp examination (noun phrase): The act of using the slit lamp to inspect the eye.
- Gonioscopy: A specific diagnostic procedure often performed in conjunction with a slit lamp, using a special lens to view the eye's drainage angle.
- Ophthalmic biomicroscope: A formal synonym.
- There are no common, simple synonyms for this highly specialized medical device. It is universally referred to as a "slit lamp" in clinical practice.
The definition is highly specific to the field of ophthalmology and optometry. The word "slit" refers to the shape of the light beam, not a cut or opening in the lamp itself. The primary function is diagnostic illumination and magnification.
- (ophthalmology) a lamp that emits a narrow but intense beam of light that enables an ophthalmologist, using a microscope, to view the retina and optic nerve