Men's Health
Basic InformationLatest News
AHA News: Hormone Therapy No Cure-All For 'Low T' In Aging MenAHA News: Instead of a Tie, Think About Healthy Gifts and Gratitude for Father's DayProstate Cancer Drug Could Be 'Game Changing,' Researchers SayWith PSA Test Out of Favor, Cases of Advanced Prostate Cancer Are RisingCOVID-19 Continues to Strike Men Harder Than WomenExercise Helps Men During Hormone Treatment for Prostate Cancer: StudyProstate Cancer Leaves Detectable 'Fingerprint' in Blood: StudyCould Dad-to-Be's Health Affect His Newborn's Health?Lose Weight, Lower Prostate Cancer RiskCholesterol Drugs Might Help Curb 'High-Risk' Prostate Cancers'Tough Guys' May Be at Especially High Risk for SuicideCould ED Drugs Threaten Men's Vision?With Equal Access to Care, Blacks, Whites Have Similar Prostate Cancer OutcomesAt the Barbershop, a Trim -- and a Diabetes ScreeningEating More Veggies Won't Stop Prostate Cancer: StudyFish Oil Supplements Might Help Men Become DadsAI Might Help Spot, Evaluate Prostate CancerWhat Works Best to Help Men With Overactive Bladder?'Less Is More' When it Comes to Testicular Cancer Chemo, Study SuggestsMale Fertility Supplements Fail to DeliverTestosterone Supplements Won't Help Most Men, Doctors' Group SaysCould Baldness Become 'Optional'? New Research May Give Men HopeAHA News: Erectile Dysfunction May Up the Odds for Irregular HeartbeatMuscle in Middle Age Might Help Men's Hearts LaterTestosterone Supplements Double Men's Odds for Blood Clots: StudyBeyonce's Dad Puts Spotlight on Male Breast CancerFrequent Male Pot Use Linked to Early MiscarriagesUsing Opioids After Vasectomy May Trigger Persistent Use: StudyGene-Based Therapy Helps Fight Advanced Prostate CancerHigh-Dose Radiation a Game Changer in Fighting Deadly Prostate CancerAt-Risk Men May Also Benefit From Regular MammogramsDoubt Over Long-Term Use of Hormone Rx for Recurrent Prostate CancerWhat Is Your Risk for Prostate Cancer?For Men, Living Alone May Mean Poorer Control of Blood-Thinning MedsHormone Therapy for Prostate Cancer Might Harm the Heart: StudyAHA News: Common Prostate Cancer Treatment May Increase Risk of Fatal Heart ConditionHealth Cautions for Young Male AthletesOverweight Men May Feel Stigmatized, TooTestosterone Therapy May Threaten the HeartTestosterone Doesn't Spur Atherosclerosis in Older Men
Related Topics

Wellness and Personal Development
Mental Disorders

Could ED Drugs Threaten Men's Vision?

HealthDay News
by By Dennis Thompson
HealthDay Reporter
Updated: Feb 7th 2020

new article illustration

FRIDAY, Feb. 7, 2020 (HealthDay News) -- Viagra can salvage a man's sex life, but in rare cases it may temporarily steal his sight.

Researchers report that some men who took sildenafil -- the generic form of the impotence drug -- suffered from vision problems, including a kind of color blindness that could take weeks to resolve.

The case report details 17 Turkish males who wound up in the hospital after taking sildenafil for the first time.

The men suffered a number of vision problems, including dilated pupils, blurred vision, light sensitivity and color blindness, the doctors reported.

The men had all taken the highest recommended dose of 100 milligrams, even though none had been prescribed sildenafil, the report said.

The visual side effects began shortly after taking the drug, and were still present when the men came to the hospital a day or two later, the researchers reported. All the symptoms eventually cleared up, but it took three weeks for some.

The findings were published Feb. 7 in the journal Frontiers in Neurology.

These sort of vision effects aren't uncommon in people who take Viagra, U.S. medical experts said.

It turns out that the enzyme that Viagra blocks to promote erections is closely akin to another enzyme that's important for the function of photoreceptors in the eyes, said Dr. Richard Rosen, a vitreoretinal surgeon at New York Eye and Ear Infirmary of Mount Sinai, in New York City.

There's a crossover effect of about 10% where Viagra blocks the photoreceptor enzyme, Rosen said.

"While it's blocking the effect of the enzyme in the penis, it's blocking the enzyme in the retina," Rosen explained.

This tends to knock out the red and green cones in a person's eyes, causing them to have intensely blue-shaded vision -- an effect that occurred in the Turkish patients.

Sildenafil also might affect a person's vision because it acts as a vasodilator for the genitals, opening up blood vessels and allowing more blood to flow to that part of the body, said Dr. Rishi Singh, a staff surgeon at the Cleveland Clinic's Cole Eye Institute.

More blood flowing to other body regions means there's less blood flow to the eyes, Singh said.

Singh doesn't think switching to another erectile dysfunction drug would solve the problem if this is a recurring symptom for a Viagra user.

"They all work with the same action, so I don't see there being any difference," Singh said.

The best solution probably is to take a lower dose of Viagra, said Dr. Talia Kaden, an ophthalmologist with Manhattan Eye, Ear & Throat Hospital, in New York City.

"While all of the patients' symptoms resolved within three weeks, this is a good reminder to start with a slightly lower dose when using Viagra for the first time, and to carefully monitor for any visual changes after taking the medication," Kaden said.

A heavy overdose of sildenafil could cause permanent damage to the eyes, Rosen warned.

Rosen and his colleagues wrote about a case a couple of years ago where a young man took as much as four times the highest recommended dose of sildenafil by accident.

"He had permanent damage to photoreceptors in the cones in his eyes that we documented on high-resolution imaging of the retina," Rosen said.

"Like any drug, one size doesn't fit all," Rosen concluded. "If you're taking it for the first time, don't be greedy. Start with a low dose and see if you're responsive."

More information

The American Academy of Ophthalmology has more about erectile dysfunction drugs and vision.

328 W. Claiborne St.
P.O. Box 964
Alabama 36460
Tel: (251)575-4203

powered by centersite dot net