Hi Dorothy
I think your eye problems maybe need to be looked at separately from your menopausal symptoms and the issue of HRT.
You mentioned that you have had eye surgery and you have been recommended to have eye drops. I presume you have seen the GP or specialist about your recent problems so that it can be treated accordingly, and that you are using the eye drops?
As for taking the sea-buckthorn oil ( I presume it is not drops?) - well of course modern medicine wouldn't be where it was without the plant world and the compounds they contain. I see one study (from the link) is quoted as showing a beneficial affect on some symptoms ie burning and redness after 3 months. However I note form the link that the herbalist urges caution with long term use:
Is Sea Buckthorn Oil Safe?
As with other herbal oils, I advise you to use caution when using sea buckthorn oil, especially if you're dealing with certain health conditions. It is not recommended for people with diseases of the intestines, kidney, and liver.29
Sea buckthorn oil is generally safe for most healthy adults, but it is not recommended for children ages 12 and younger.30 I advise you to avoid using them for more than three months, as there are reports of adverse effects in people who use the oil for prolonged periods. There are also people who are sensitive to sea buckthorn and its constituents, so make sure to do a patch test on your arm before applying this oil to your skin.31
You may notice your urine turn a dark yellow or reddish color, with a slight musty smell (similar to old books), but this is usually harmless.32 Applying copious amounts of the oil on your skin may also cause a yellow discoloration on your complexion.
sea buckthorn composition
Since there is no scientific proof regarding its safety for pregnant or nursing moms, I recommend avoiding this oil if you are pregnant, lactating, or planning to be pregnant in the near future.
Side Effects of Sea Buckthorn Oil
Sea buckthorn oil may cause certain side effects in some people, such as
diarrhea, abdominal spasms, and other gastrointestinal problems. Avoid taking this oil in high amounts, as it may lead to dehydration and loss of beneficial electrolytes. Overdosing and using sea blackthorn oil for prolonged periods may also lead to kidney problems.33
Ingesting sea buckthorn oil may promote blood flow in the veins and arteries, so if you are taking any vasodilator medication, do not use this oil.34 It may also have blood sugar-lowering properties, so people who are taking insulin or diabetes medications should use this oil with extreme caution.35
Therefore if you are taking it for short-term relief then looks like it may work and will be fine to use - and won't cause any harm.
However if it is a long-term problem then further investigation from your doc might be needed and appropriate, long-term treatment that is proven to be safe and effective would then be needed.
By the way hope you manage to get registered with your doc soon! Sounds like a right palaver!
Hurdity x