Viagra Damages Retina Function
Successful approaches are not limited to stem cell treatment, nerve growth factor injection, acupoint injection, acupuncture, microcurrent stimulation or to the drugs you decide to take; they can also include what drugs not to take. Case in point: do not take impotence drugs such as Viagra.
Viagra obstructs an enzyme that sends light signals from the retina to the brain. Doctors have known for several years that it could cause temporary vision problems in healthy men, but a new Australian study found that its effects could be permanent. The study shows that sildenafil (Viagra) may cause permanent damage.
The progression of this condition may be reduced by the daily intake of vitamin A palmitate.13 Studies have demonstrated that proper vitamin A supplementation can postpone blindness due to retinitis pigmentosa by up to 10 years. However, its use may not be effective in some forms of RP and should be supervised by an ocular professional.
Vitamin A is contraindicated for those with Stargardt’s disease (which can cause retinitis pigmentosa) and pregnant women.
Other studies have shown supplementing with nutrients such as omega-3 fatty acid, DHA, lutein, zeaxanthin, saffron, vitamins E, C, and alpha-lipoic acid can help preserve vision.