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Eye examination with the aid of a slit lamp. Watzke-Allen test is done by projecting a thin line of light over the macula with a slit lamp. [4] A fundus lens or macular lens is used to aim beam of light on the macula. [5] It is best performed in a dilated eye, projecting a slit beam of approximately 100 μm.
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.
A full eye examination consists of a comprehensive evaluation of medical history, followed by 8 steps of visual acuity, pupil function, extraocular muscle motility and alignment, intraocular pressure, confrontational visual fields, external examination, slit-lamp examination and fundoscopic examination through a dilated pupil. [2]
A slit lamp exam allows a detailed inspection of the conjunctiva and sclera and improves the detection of globe injury. Slit lamp exam findings like decreased anterior chamber depth or damage to posterior chamber structures indicate open-globe injury. [3] A seidel test detects more subtle or partially self-sealing open-globe injuries.
Slit lamp examination SLM Slit lamp microscope EP Esophoria: ET ... Full thickness macular hole ... (PDF) theOptom.com ...
Because of injury, infection or inflammation, an area of opacity may develop which can be seen with a penlight or slit lamp. In rare instances, this opacity is congenital. [4] In some, there is a family history of corneal growth disorders which may be progressive with age. Much more commonly, misuse of contact lenses may be a precipitating factor.
In ophthalmology, gonioscopy is a routine procedure that measures the angle between the iris and the cornea (the iridocorneal angle), using a goniolens (also known as a gonioscope) together with a slit lamp or operating microscope. [1] [2] Its use is important in diagnosing and monitoring various eye conditions associated with glaucoma.
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.