Your doctor may also put a few drops of dye in your eyes to highlight the things you want to see. They will then turn off the lights in the room and turn on the slit lamp. 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. A slit lamp is a microscope with a bright light that is used during an eye exam.
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. The slit lamp is an energy-efficient microscope combined with a high-intensity light source that can be focused as a thin beam. 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. The Haag-Streit slit lamp is a relatively complex instrument with multiple controls.
It is necessary to know what each of the knobs does to facilitate the use of the instrument. The lower button determines the width of the split beam. The upper knob determines the vertical height of the split beam. The uppermost knob determines the brightness and color of the split beam.
The knob on the side with numbers determines the magnification of the image through the eyepieces. It's generally a good idea to start with a relatively low increase and increase the increase as needed. There is room for a teaching environment, which is not in this slit lamp. When you pull the device at the top, you can see it through the teaching viewer.
The eyepieces should be reset to zero unless you are trying to correct the refractive error. The eyepieces can be moved to adapt to your particular interpupillary distance. The knob in front of the magnification is a stereo variator that can give or remove depth to the object you are viewing. The upper part of the slit lamp can be rotated to rotate the orientation of the split beam from vertical to horizontal, and the beam can essentially be rotated 180 degrees.
The side screw will lock or block the slit lamp so that it can move. The patient must be adjusted to his height. The knob on the left side of the slit lamp will move the chin up or down. The black mark on the side should be aligned with the patient's side edge.
Once you are in the ophthalmologist's exam chair, he or she will place a slit lamp in front of you and ask you to rest your forehead and chin on the supports. It will then turn on the slit lamp and focus a narrow, high-intensity beam of light toward the eye. At the end of the exam, the screw on the side of the slit lamp must be tightened to secure the instrument in position.