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Diabetic Exam
 
 
 
 
Diabetic Exam
Poor diabetic control may manifest in many different ways, with macrovascular and microvascular complications. The diabetic examination is useful for diagnosing these complications, particularly when it comes to the vascular and neurologic examination of the lower limb.
 

Visual Acuity

 
 

Overview

    • How to Assess

    • Ask the patient to cover one eye, look at a Snellen chart (wall-mounted at 6m or handheld at arm's length) and identify the smallest line that they can read.
  • If the patient wears corrective lenses, perform the test with and without them.
  • If the patient's visual acuity is poor, use a pin hole over their eye to test for refractive error.
    • Causes of Poor Visual Acuity

    • Refractory error
    • Corneal opacification - cataract, infection, trauma
    • Vitreal opacification - intraocular haemorrhage
    • Retinal disorders - macular degeneration, retinal detachment, diabetic retinopathy, retinal artery occlusion
    • Optic nerve disorders - glaucoma (raised intraocular pressure), ischaemia, optic neuritis
    • Intracranial disorders - pituitary disorders, aneurysm
Last updated on November 28th, 2019
 
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