Angular deviation test is a visual acuity test that is used to determine a person's ability to distinguish small details and objects at a distance. It is based on the fact that if a person sees small objects, then he can determine their angular deviation from the central point.
To perform the angular deviation test, a special instrument called an inclinometer is used. This device allows you to measure the angle at which small objects are visible. If a person cannot determine the angle, then his visual acuity is considered insufficient to perform this test.
The angular deviation test can be used to diagnose various eye conditions such as nearsightedness, farsightedness and astigmatism. It can also be used to determine the effectiveness of treatments for these diseases.
To take the angular deviation test, the patient must sit in front of the device and look at a small object located about 20 centimeters away. The doctor or nurse will slowly turn the object in different directions, and the patient will have to say when the object becomes visible from a certain angle.
If the patient cannot determine the angular deviation of an object, this may indicate vision problems. In this case, you need to consult an ophthalmologist for further examination and treatment.
Thus, the angular deviation test is an important tool for the diagnosis and treatment of various eye diseases. It allows you to determine the patient's visual acuity and identify possible vision problems that can be eliminated through treatment or vision correction.