Earliest sign of papilloedema -: (A) Less of pulsation, (B) Blurring of disc margin, (C) Obliteration of cup, (D) Cotton-wool spots
Answer is B. Early (incipient )papilloedema is characterised by, obscuration of disc margins (nasal margins involved first , then superior , inferior and temporal) blurring of peripapillary nerve fibre layer absence of spontaneous venous pulsations at the disc mild hypaeremia Refer comprehensive ophthalmology (6 th edition )A K Khurana, page no. 324