I take combizar 100, metformin, Versant, and aspilet to check on my hypertension. i have imbalance, stumbling, difficuty in walking straight or turning a corner. Clumsiness or difficulty in coordination. Difficulty in maintaining straight posture, tendenccy to look downward to confirm the location of the ground, Sensitivity to light and glare, objects may appear doubled in a page. Poor depth perception, what may cause these all.