slit-lamp


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slit-lamp

A low-power, binocular microscope with an intense light source, used to examine the internal structures of the front part of the eye and, by means of special eye contact lenses, the VITREOUS BODY and the RETINA.

slit-lamp 

Instrument producing a bright focal source of light with a slit of variable width and height. It may be used to examine the tissues of the anterior segment of the eye in conjunction with a microscope (usually binocular) of variable magnification. To examine the internal structures of the eye including the retina an auxiliary lens is required. Many such lenses exist, some which do not make contact with the eye (e.g. Hruby lens, Volk lens) and others which come in contact with the eye, usually like a scleral type of lens (e.g. Goldmann lens, Thorpe four mirror fundus lens, Wilson three mirror fundus lens). A slit-lamp is essential in contact lens practice. This instrument is also commonly called a biomicroscope (Fig. S9). See fundus biomicroscopy; gonioscope; illumination; Shaffer and Schwartz van Herick method; Smith's method; slit-lamp microscope; endothelial polymegethism.
Fig. S9 Slit-lamp (Shin Nippon)enlarge picture
Fig. S9 Slit-lamp (Shin Nippon)
References in periodicals archive ?
Slit-lamp examination revealed pencil lead in the right temporal cornea (between 8-9 o'clock) that had perforated the cornea and iris near the limbus.
Slit-lamp examination revealed intact corneal epithelium and silver carbon particles in the inferonasal stroma.
On slit-lamp examination, corneal perforation and fragments of pencil lead were observed at the wound site.
With the 7X magnification, we pick up subtle findings on the cornea, conjunctiva, and iris that usually require a slit-lamp examination and cannot be detected with a penlight and bare-eye exam.
Slit-lamp examination revealed motile larvae in the right palpebral and bulbar conjunctiva.
For this reason, thorough slit-lamp examination should be performed on patients with similar symptoms, especially in areas with high livestock densities.
In summary, external ophthalmomyiasis should be kept in mind in the differential diagnosis of patients presenting with conjunctivitis and a thorough slit-lamp examination including the inner eyelids should be conducted to ensure the diagnosis is not overlooked.
At the first week follow-up examination after the surgery, slit-lamp examination showed stromal striae, but it was impossible to examine the anterior chamber details and diagnose the DMD due to the corneal edema.
Before the introduction of advanced machines, the diagnosis of DMD used to be done by slit-lamp examination with the aid of topical glycerin to dehydrate the edematous cornea.