Ever been told masturbation will make you go blind? That particular old wives' tale still circulates widely. Masturbation is also seen as detrimental to normal sexual relationships and possibly as having a negative effect on male fertility. Much of the negative hype, though, is really about sexual prudery, not health.
In fact, in most cases, a bit of happy solo time is beneficial to your health - and there is no reason to feel any shame about it.
For men, masturbation may help prevent prostate cancer - it cleans out the urogenital tract and prevents the build up of toxins. Of course, having sex has the same effect - but if you don't have a current partner, then masturbation is just as good. And for women, it can reduce the risk of UTIs and increase blood flow to the vagina. This is particularly important for post menopausal women, who might find regular masturbation will make normal heterosexual sex more comfortable by reducing dryness and narrowing. For older men, it can have similar benefits - helping get and sustain better erections by working out the muscles that support healthy sex - and of course it can keep you, as the ED drug adds say, "Healthy enough for sexual activity."
For both sexes, masturbation can help reduce anxiety, it can help you sleep, and it can improve self esteem and self love - after all, you have sex with people you love, right? Oh, and for women, masturbation, especially with vibrators or toys, can actually improve sex with a partner by helping them know what they want and where the G-spot is. If you can't find it yourself, how can you tell your partner where it is? For men, masturbation can be a great way to practice taking longer - good for you and your partner.
Experiencing more orgasms in general is good for your vagina if you have one, for your heart, for your immune system and for your mood. So, especially if you are currently not getting laid enough, don't worry about enjoying some solo fun, with or without toys or tools.
Now, yes, masturbation can cause problems - if you do it too much. But as long as it isn't interfering with your work, your family, or your relationship with your partner or partners - then there's no health problems to worry about. Yes, sex addiction is a thing, but don't let it get in between you and the very real benefits. Your eyesight will not be affected at all.