The PL test, or Light Projection Test, is a diagnostic test used in ophthalmology to assess retinal and optic nerve function. It involves shining a light source into different parts of the patient's eye to see if they can identify the direction the light is coming from. It is a simple and quick test that helps assess the eye's ability to perceive light, which can be useful in diagnosing various types of visual disorders and in assessing the effectiveness of treatment.
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