What Causes Blurred Vision In An Elderly Person?

Posted on Wed, 12 Jul 2017

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Wed, 12 Jul 2017 Answered on

Wed, 2 Aug 2017 Last reviewed on

Question : 87 yr old male. Has diabetes, under control, hypertension, well controlled. Very enlarged prostate , psa of 50. Going for biopsy in 3 wks. Becomes weak in the knees, sleepy, blurred vision, feels like he will fall over backwards after eating breakfast and lunch. Feels better by evening. Check back throughout the day. Readings within normal limits .

Answered by Dr. Ornela Ademovi (3 hours later)

Brief Answer:
Signs of high blood sugar most likely

Detailed Answer:
Hello dear,

I can understand your concern. Weak knees, sleepiness, blurred vision, disorientation, are all symptoms of high blood sugar. I am assuming that his blood sugar is only being measured once or twice per day after having taken the medicine, and this might be the reason why they seem normal.

I'd suggest you measure his glycemic levels first thing in the morning, prior to breakfast, right after the breakfast and two hours after meals. Write the results down and repeat this for 3 days and take the notes to his doctor, as he might need a medication adjustment. Also, do a glycosylated hemoglobin (HbA1C).

I would also advise you do a thyroid hormone level test to see if his thyroid gland is under active.

I hope this helps. If you have any further questions I'd be happy to answer them.

Wishing him good health and all the best.
Regards

Above answer was peer-reviewed by : Dr. Arnab Banerjee