It allows the ophthalmologist to take a closer look at the different structures in the front and inside of the eye. It is a key tool for determining eye health and detecting eye diseases. For this purpose, many doctors use a “slit lamp”. It is a special microscope and light that allow the doctor to see the eyes in 3D, both inside and out.
They will use it together with an ophthalmoscope to look at the back of the eye. The eye doctor may use a microscope called a slit lamp to examine the front of the eye. The microscope focuses a narrow, intense line of light on the eye. The slit lamp provides an enlarged 3D view of the eye and allows the doctor to detect any minor abnormalities.
Used with special lenses placed close to the eye, the slit lamp also provides detailed views of the back of the eye. You will usually have the exam with a slit lamp in an optometry or ophthalmology office. The test is also called a biomicroscopy. It allows the doctor to examine the eyes microscopically for any abnormalities or problems.
A slit lamp is an instrument that consists of a high-intensity light source that can be focused to make a thin layer of light shine on the eye. It is used together with a biomicroscope. The lamp makes it easy to examine the front and back segments of the human eye, including the eyelid, the sclera, the conjunctiva, the iris, the natural lens and the cornea. The binocular examination with a slit lamp provides an enlarged stereoscopic view of the eye structures in detail, allowing anatomical diagnoses to be made for a variety of eye conditions.
A second portable lens is used to examine the retina. In addition, when the slit lamp is attached to a special magnifying lens, the doctor will be able to see the retina and optic nerve located at the back of the eye. One sign that can be seen on the exam with a slit lamp is a flash, which is when you see the slit lamp beam in the front chamber. The first slit lamp concept dates back to 1911, attributed to Allvar Gullstrand and his large glare-free ophthalmoscope.
It will then turn on the slit lamp and focus a narrow, high-intensity beam of light toward the eye. At this time, the great importance of color temperature and luminance of the light source for examinations with slit lamps was recognized and the basis for examinations with non-red light were created. During the exam, the doctor will look through the microscope and adjust the light of the slit lamp to see certain parts of the eyes. It wasn't until 1919 that several improvements were made to the Gullstrand slit lamp manufactured by Vogt Henker.