According to this study "Intraocular pressure reduction of ≥ 20% post-trabeculectomy was associated with an improvement in colour vision. Colour vision tests may be useful as an adjunctive outcome measure for therapeutic interventions."
Is this because with decreased pressure the optic nerve is more perfused? I spoke to our glaucoma specialist about this study and he said he'd welcome color deficiencies as an indication for trabeculectomy. Yea...he'd like that.
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