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Eye examination with the aid of a slit lamp. Side view of a slit lamp machine. Cataract in human eye: magnified view seen on examination with the slit lamp. In ophthalmology and optometry, a slit lamp is an instrument consisting of a high-intensity light source that can be focused to shine a thin sheet of light into the eye.
It is a characterized by a breakdown or damage of the epithelium of the cornea in a pinpoint pattern, which can be seen with examination with a slit-lamp. Patients may present with non-specific symptoms such as red eye, tearing, foreign body sensation, photophobia and burning.
The first type of diagnostic procedure referred to as a ‘slit lamp examination’ of phacolytic glaucoma allows for specific identification of microcystic corneal edema and the presence of macrophages, white material (dotted with patches within the inside capsule of the lens) and intense flare and iridescent or hyper-refringent particles ...
It can also be asymptomatic, and only discovered because of subtle lines and marks seen during an eye exam. [3] EBMD is a bilateral anterior corneal dystrophy characterized by grayish epithelial fingerprint lines, geographic map-like lines, and dots (or microcysts) on slit-lamp examination. Findings are variable and can change with time.
Fluorescein staining of the tear film before slit lamp examination may reveal etiologies of the surface of the eye, such as corneal abrasions or keratitis due to herpes simplex viral infection. The binocular slit-lamp examination provides stereoscopic, dimensional and magnified view of the eye structures in striking detail, enabling exact ...
Diagnosis is often by slit lamp examination after fluorescein dye has been applied. [1] More significant injuries like a corneal ulcer, globe rupture, recurrent erosion syndrome, and a foreign body within the eye should be ruled out. [1] Prevention includes the use of eye protection. [1] Treatment is typically with antibiotic ointment. [1]
On slit-lamp examination, conjunctival injections, epithelial corneal edema, [3] small to medium-sized fine keratitic precipitates, aqueous cells and flare may also be noted. [4] Blurring of vision, eye pain and discomfort are the main symptoms. [4] Colored halos may occur due to elevated IOP. [5]
This image is of the angle of the eye as seen through a slit lamp. It is labelled as Grade 4 according to Van Herick's Grading system. The Van Herick's technique compares the depth of the peripheral anterior chamber with the cornea thickness, usually written as a fraction [ 6 ] however, it can also be expressed as a ratio (see table 3). [ 5 ]