What are occlusters?

During the routine eye test, the eye physician must often check the sharpness of one eye compared to the other. For this purpose, the examiner uses a set of special eye packs known as occluders . Some occlusters cover the patient's untested area completely and allow absolutely no light to penetrate. Other occlusive people have holes that allow only a certain amount of light to enter. There are also transparent occlusion that create a blurred effect on the untested eye. The eye physician can use different holes with different strengths to measure the level of distorted vision of the patient, whether it is myopia or foresight. The prosecutors reduce the amount of light available that reaches the eye of the viewer that can slightly sharpen your focus without correctional lenses. The act of the whipper also has the same effect and creates a temporary sense of sharp focus until the lid is released again. Eye doctors use a hole or opaque occlusters to get a more accurate measuredwithout voluntary or involuntary squinting of the patient. The untested eye can remain open in its natural position, but the patient cannot use it to read rows or describe images.

A typical optical occlusion is a hand -held device with a small curved cup at the end of the pen size stick. Some examiners will use the same occlusters for multiple patients, while others will use one -time versions for each patient. The curved cup is designed to fit through the patient's eyes, but not compressing algae or eyelids. Some examiners allow their patients to hold an occlusion in a comfortable position above each eye during the exam. The same light effect or visual blocking can also be achieved while the patient looks through the binocular eye examination tool. The eye physician will normally block each eye to determine the differences in visual acuity or signs of astigmatism.

exThey are also inspired by medical devices called occludists, which are used primarily by cardiovascular surgeons. These occludists are essentially plugs that are surgically introduced into a leaking blood vessel and point to the source of leakage. Once in place, the Okluder is carefully open as an umbrella and both sides of the tears are securely attached. This cardiac form of the occluder serves an extremely different function than the optical occlusion.