Hello and thanks for your question.
Unfortunately, it does take sometimes many months for the eye to heal and the vision to normalize from even one glaucoma
surgery. But with two surgeries I would expect an even greater recovery time visually. There are things that can cause decreased vision after glaucoma surgery including cataract formation, dry eye
, retinal swelling, or even worsening vision from glaucoma. I think that your glaucoma surgeon should be able to tell you when the eye has totally healed and at that time these causes of possible vision loss should be investigated. Does that make sense and does that help address your concerns?
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My opinion is solely informative and does not constitute a formal medical opinion or recommendation. For a formal medical opinion and/or recommendation you must be examined by your doctor.