This thread has hit a chord with me!
I too have noticed a cloudy/hazy patch in my left eye...for a few weeks now, though there is no colour, and I have no history of migraines either.
I went to an 'optician'.... actually it was my local Specsavers, and they were no use at all!
Since my prescription in my left eye had changed too, at about the same time I started noticing the 'misty' patch, I thought it best to act quickly.
I asked the Specsavers person why my short-sightedness had improved in my left eye.
His response was "I don't know!":banghead:
High street chains of 'opticians' are virtually useless for diagnosing serious vision issues in my opinion
(their primary goal is spectacles retail), and advice from either a GP or a good, independent optician should be sought.
I now have an appointment with my GP tomorrow, and I hope to have it looked at by a specialist sooner rather then later.
I suspect that my problem is a cataract, since I have some strange haziness when looking at bright lights etc.
I urge the you Keith @DorsetDude to get it looked at by a proper, independent optician or get a referral by a GP as soon as possible.
Any symptoms left unchecked could get worse, and considering we are all photographers here, the last thing any of us want is loss of vision!