Does Levitra Cause Blindness?
There are a number of possible side effects with
Levitra® (
vardenafil HCL). Some of these side effects can affect vision. For example, some people taking Levitra experience temporary:
- Blurred vision
- Changes in color vision
- Eye pain
- Glaucoma.
In previous clinical trials, these side effects occurred in fewer than 2 percent of all cases.
In rare cases, temporary or permanent blindness has occurred in people taking Levitra. However, because blindness occurs so infrequently, it is not possible to say whether the blindness is caused by the medicine, other medical conditions, genetics, a combination of these factors, or something completely unrelated.
Levitra, Blindness, and NAION
In people taking PDE5 inhibitors such as Levitra, there have been rare cases of a condition called non-arteritic anterior ischemic optic neuropathy (NAION). This condition can lead to sudden loss of vision in one or both eyes. In previous clinical trials, most people who developed NAION while taking Levitra had risk factors that increased the chances for developing NAION, including: