A 1 - Response from Online-eye-info/Glaucoma and dyschromatopsia
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Glaucoma affects optic nerve which causes impairment of color vision and this is called dyschromatopsia.
Betoptic eye drops should be used twice a day. Intraocular pressure of 22 on the right eye is above the normal range. The normal intraocular pressure is 10-20 mmHg.
Sometimes eye dryness can cause temporary impairment of color vision.