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For a person like you with no significant risk factors for cardiovascular disease (I assume you do not smoke either), a value of 5.8 mmol / l Total cholesterol level is near normal. You need not be overly concerned about this just because there was some sings in the retinal examination. This is eye finding is a observational finding and it does not mean all your arteries have plaques.
However it is better to look into the Cholesterol levels and take action if needed. The good thing is that there are very efficient and safe medications if needed. I would like to know whether you have done a Lipid Profile - (Detailed Cholesterol levels which include HDL, LDL, VLDL, TC in addition to Total Cholesterol values.) If so please share the values. You can reply as a followup.
Hope this helps
Feel free to ask followups.
Patient replied :
Thank you for that - was under the impression that the retinal plaque indicated high liklihood of plaque in all other aeteries. One thing I fid not mention is that my father had bypass surgery at 56 but Inam assuming my gender and age make me a little different ?
You have mentioned that " He noted there were signs of high cholesterol shown by some dots on the xray." This is the tricky part here. If this was any pretty evident cholesterol emboli or Hollenhorst plaque I am pretty sure that this the Optometrist would have alerted the Ophthalmologist and your Physician. Also your GP has commented that it is ok. So most likely these are suspicious findings. But if you can get the exact report it will helpful
Now In my opinion this has to be considered as a warning sign. But your total cholesterol is not elevated into any dangerous levels. Nevertheless you should do a complete Lipid Profile (TC, HDL, LDL, VLDL). I am not sure how feasible a repeat opthalmic examination is, but if possible do get it done. This is because if there is a real emboli or plaque you will require some additional testing also.
Your risk is lower than your Father's because of your age and sex. But I would say do no bank of the statistical risk,as it is pointless on an individual level.
Hope this helps
Do keep me posted. Feel free to ask followups.