Jake S.
Post count: 8739

State of mind, important.   Depression, totally not necessary.

First, edge cases are definitely even more of a self exploration since the less common it is, the less previous experiences data I can use for context or likely outcomes.

If there aren’t any medical issues found for the left eye, it’s reasonably likely that you can affect acuity by guiding the eye with well considered diopter changes.  The one curious aspect here is how the ratio got so large.  Since it sounds like you started out with not this, if the diopters gradually increased, it could be lens-induced myopia.  Though from here I can’t rule out other issues, even if the odds of that generally are quite small.

To start:

Ideally you want both eyes to have a similar blur horizon.  A bit of challenge for the left eye, somewhere up to 20% generally speaking could be ok.  A good way to tell if both eyes are working together, is slightly better measurement results with both eyes over each single eye measurement.  

Then keep a log.  See if the left eye adjust at some rate as right eye, if it does faster, or slower.  All that will tell you a lot about how that eye is doing.  Ideally same rate, a bit slower is still fine, faster means ratio reduction would be ok.

It’s a nice long term project.  Small, gradual changes, occasionally checking in how the eyes are adjusting.  

Sometimes getting a checkup with a trusted ophthalmologist may also be a good bit of insurance.  As always I can’t offer medical advice, nor have the ability to diagnose issues that your local ophthalmologist has tool and qualifications for.