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What is a slit lamp?

, 20:23
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One of the most important diagnostic tools in the Arsenal of optometrists and ophthalmologists is the slit lamp. This device allows the slit lamp visible parts of the eye: the lens and the iris, the eyelids and the conjunctiva, sclera and cornea. Examination the slit lamp is the best method to see eye tissue under repeated magnification, that is why he has long been routine, but at the same time, a necessary procedure for examination at a reception at the ophthalmologist. It is very important to conduct examinations of people who wear contact lenses, because the slit lamp gives the possibility to visualize even the smallest changes in the status of the tear film, cornea, eyelids and conjunctiva, which speak about the complications. By the way, you can buy in the company "Developed Ukraine":


Device slit lamp

the design of this device is bound to have elements such as:

  • binocular microscope (optical system)
  • halogen or led lamp with a light intensity of 200 mW/cm 2 (lighting system)
  • supports.

Pens give the opportunity to change focus and position horizontally and vertically. Optical system and lighting system are often in focus, 1-point, except where they are specifically bred.

the lighting System has a diaphragm which, in turn, provides the slit height and width to 1.4 see Also, depending on the model of slit lamp, the lighting system includes a pair of additional filters. Binocular microscope consists of an eyepiece with a variable (often discretely-optic) and power of lens (often with zoom: 3 - 3,5 times). Most often, the range of speed increase is 5 - 50 times. If you take an extra eyepiece, it is possible to achieve increase in 70 times.


In slit lamps are used 2 types of microscopes:

  • Gren
  • Galilean type.

depending on the preference of the ophthalmologist, the light source can be placed below or above.

Slit lamps are both portable (hand-held) or stationary. Manual slit lamps are more mobile and light, they can be used to conduct surveys out of the Cabinet. A stationary slit lamps allow for a more accurate examination.

Translated by "Yandex.Translate":

Author: Artlife
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