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Sudden decrease or loss of vision has occurred rarely after the use of oral erectile dysfunction medications, including Cialis. If this occurs, it’s best to seek immediate medical attention. However, if you’re suffering from one of several serious conditions, Cialis may not be the right treatment for you. If you have high or low blood pressure, liver or kidney disease, or if you’ve recently suffered from a stroke or heart attack, you should definitely seek medical advice before committing to Cialis. Men who smoked cigarettes had higher rates of erectile dysfunction