What was the average height of MRD?
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Margin Reflex Distance (MRD)
MRD1 is normally 4-5 mm while MRD2 is normally 5 mm. Palpebral fissure height (PF) is the distance between the upper eyelid margin and the lower eyelid margin: MRD1 + MRD2 = PF.
MRD1 is normally 4-5 mm while MRD2 is normally 5 mm. Palpebral fissure height (PF) is the distance between the upper eyelid margin and the lower eyelid margin: MRD1 + MRD2 = PF.
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