Tamoxifen and blurred vision

ive only been on Tamoxifen for six weeks but have noticed my vision  getting increasingly blurred. Do you think the tamoxifen would have anything to do with that? I do have high blood pressure which I take medication for and I’m a type 2 diabetic which is well controlled with diet and medication. The blurriness has only become worse in the past couple of weeks and I feel like I’m looking at things through a fog. I have made N appointment with my optometrist who knows me well for next Friday and am seeing GP on Monday so will mention it to him. I have radio oncology appt on Wednesday also so will also ask them if they think it may be a side effect but has anyone else encountered this at all?  Lesley