Double vision in one eye

I'm 24 years old male and I have double vision in my left eye (when my right eye is covered double vision in the left eye remains)
Anything bright on dark background or vice versa, I see double image slightly blurred and shifted to the bottom (with or without glasses), such as street lights, computer screen, text on white background etc.

I visited 3 ophthalmologists, none of them found anything unhealthy about my eyes.
One of them told me I’m perfectly fine, other one told me he doesn't know what it is and the 3d one told me it looks "something like cataract" but then told me it's not cataract and told me to come back in 6 month to check up on it.

I have this double vision for over 7 months now.
After first month I did change my glasses with updated prescription to see if that would improve the situation.
Still no improvement...
Also this winter my left eye would get extremely irritated and watery (I'm assuming due to dry air in the office) like it never did before to the point that my muscle underneath the eye would twitch.
Also when I wake up I will have my left eye quiet puffy and the right one is fine.

I've told all those things to the ophthalmologists and yet they told me there's nothing to do about it.

What could cause this double vision and who could help?


Thank you,

Dev

[Michael J Kutryb, MD]

I suggest a corneal topography and wavefront examination.  Perhaps you have some irregular astigmatism or higher order abberations that are causing monocular diplopia.  Cataract or corneal surface irregularity, macular pucker are also possibilities.  Would also get macular OCT scan.

MJK MD