Japan Today

5-yr-old boy may lose sight after man adds battery acid to eye drops


Police said Thursday that a man in Shirakawa, Fukushima Prefecture, has been arrested for adding battery acid to a bottle of eye drops, causing serious injury to his girlfriend's son.

Tamotsu Ito, a 48-year-old truck driver, is accused of putting battery acid in the eye drops between April and December of last year, NTV reported. According to police, Ito -- who is married -- encouraged the woman he was dating to use the drops. The woman is believed to have regularly used the drops on her son, who was 4 at the time, resulting in serious injury. The boy had been prescribed the eye drops for an eye inflammation.

The damage to the boy's eyes was initially identified by a doctor during a medical examination in December. The police were informed of the incident by the hospital, according to NTV.

Doctors say there is a possibility the boy will lose the sight of his right eye.

The boy is currently in the protective custody of a Fukushima child counseling center. His mother told police she did not know the eye drops had been tampered with, NTV reported.

Police say Ito has confessed to adding the acid to the eye drops. He was quoted by police as saying he hated the boy.

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WTF! I am so outraged by this, I really can't think what would be a just punishment. But the quote from the old testament comes to mind, "an eye for an eye, a tooth for a tooth". Lets see this inhumane monster loose the sight in one of his eyes and see how he feels!

21 ( +22 / -1 )

The Poor 4 year old kid, how innocent....Even this kind of act should not happen to a Cat

Those men are real Evils in the Society.

Keep them life term jailed.

10 ( +10 / -0 )

What an @$$...the guy deserves some SERIOUS jail time for ruining that boys life, and the mother doesn't deserve to have him back for not recognizing that this man is dangerous earlier.

8 ( +10 / -2 )

i cannot believe this

12 ( +12 / -0 )

His mother told police she did not know the eye drops had been tampered with

She regularly used eye drops with battery acid in them, and didn't think anything was wrong?

No wonder the kids in protective custody. Put her in jail too.

3 ( +7 / -4 )

very sad.

9 ( +9 / -0 )

I just have no words for this pathtic excuse for a human. My own son is 5 years old. The thought of someone deliberately trying to harm him just makes me ill.

9 ( +10 / -1 )

Police should put acid in his pants

12 ( +13 / -1 )

This man is the reason the death penalty was invented, IMHO.

11 ( +12 / -1 )

@Michael Morris.. lose not loose

-2 ( +4 / -6 )


This guy needs to be taken someplace private. I don't usually condone torture. Oh man!! Let him have it!!!

8 ( +9 / -1 )

What a pleasant fellow.

-6 ( +1 / -7 )

Yeah...this guy needs to have a taste of his own eye medicine. Give him some drops of battery acid and feel what he inflicted on this poor child! The mother should get the same!!!

When I see my kids in pain, I wish I could take it away or take it in their place. I cannot imagine a mother who would inflict this on her own child!

9 ( +9 / -0 )

According to police, Ito—who is married—encouraged the woman he was dating to use the drops.

So the child is not his own if I read this correctly?

If I was giving something to my son which was prescribed by a doctor and was causing serisous discomfort I would have gone back to the docotor and found out why!

7 ( +7 / -0 )

This is probably the lowest of the low. There are plenty of women in Japan who are probably just as desperate as the boy's mother that would take a looser like him. I say that the mother is a looser because there is no way that she didn't notice that this guy didn't like her son, and probably mistreated him well before he started giving him the drops.

This guy is a loser, and should be castrated just because.

6 ( +6 / -0 )

Tamotsu Ito is a monster. I wish what he did can happen to him, 100 times more worse! Nobody deserves something like this. He is a terrible human being and does not deserve to live in normal society, throw him to the wolves and he should forever rot in hell.

6 ( +6 / -0 )

Ben_JackinoffJAN. 27, 2012 - 08:14AM JST This man is the reason the death penalty was invented, IMHO.

Ben it's just too bad the rope can't be used on this guy. Sometimes you really wish...!

6 ( +6 / -0 )

i don't know even what to say about this :o

3 ( +4 / -1 )

I can comprehend the act of striking a kid in a momentary fit of rage, even though I would never condone it. What I can't understand is this slow cruelty and callousness to a 4-year-old over time. The man has no conscience or sense of humanity whatsoever. How do such sick creatures come about?

8 ( +8 / -0 )

the guy is married, but he has a gf, and his gf has a son...and battery acid in a 4 year old's eye drops?? nefarious bastard.

6 ( +7 / -1 )

an eye for an eye... lavish his eyes with ample amount of battery acid

8 ( +8 / -0 )

So ha hated the boy? Who does things like this anyways. I just hope they dont start outlawing batteries over this.

2 ( +3 / -1 )

Don't think an eye for an eye is enough in this case. He has basically ruined this childs life - death is appropiate. I'm available if nobody else volunteers.

3 ( +6 / -3 )

That's just nasty. Maybe he can be forced to donate a cornea to the boy. That would be an eye for an eye with a modern twist.

8 ( +8 / -0 )

Lets see this inhumane monster loose the sight in one of his eyes and see how he feels!

White cake. Choose the white cake. But in relation to the dark cake, to have the right affect this would also have to be done slowly, in a helpless state, an ironic expectation of getting better, a sense of the cause yet low ability to communicate or be persuasive, a mental state of innocence (undeserving of the attack), simultaneous pressure of needing to be active and in top condition to get oriented and established in life, and done at the hands of a loved one and caretaker. Difficult if not impossible to replicate, not to mention the probable psychological affects incurred as blowback to the one administering the revenge. Consequently, I would set that dark cake aside and take up the white cake of running the bad guy through the justice system, waiting for the final touches of justice in the next life and productively focusing on other things in the mean time. May the child heal well, physically, psychologically and emotionally.

-2 ( +1 / -3 )

Readers, please stop posting grisly suggestions for the suspect's punishment. It lowers the level of discussion.

accused of putting battery acid in the eye drops between April and December of last year

The damage to the boy’s eyes was initially identified by a doctor during a medical examination in December.

No one even noticed the damage before December? Or was the mother thinking that it was just the inflammation? Just imagining having battery acid touch scratches or open woulds cause pain, how much more to the naked eye?

Ouch, ouch, OOOOWWWWW!!

3 ( +3 / -0 )

Speechless... :(

3 ( +4 / -1 )

Every year you have a Japanese man or woman or both together do some twisted sick heinous act to a child. A few years ago it was putting them on the porch...then came the washing machine... this guy takes the sick **** gold medal. A jury in the US would do 20 on this guy easy. And then when he got to the can he would be beat daily on his cell block.

5 ( +6 / -1 )

The interview with the neighbours that was shown on TV last night described how they would hear the boy screaming every night. Not normal crying, but screaming and yelling that it hurts etc. This went on from April to December; i dont have children but i cannot imagine any sane mother continuing to put eyedrops into my son's eyes if he complains like that. I smell something fishy with that!

11 ( +12 / -1 )

A couple of comments to support the mother. The battery acid was 'added' to the drops, suggesting it was diluted, and may not have given rise to much pain on application, or not more than the usual brief 'sting' from putting in some drops. The poor mother probably had no idea it was the dilute acid, and not the underlying eye disease (inflammation) that was causing the problem. The symptoms would be identical. She would not be likely to question her physician who prescribed the drops, and just accept that the drops would eventually cure the problem.

5 ( +6 / -1 )

Makes me want to round up a posse of angry gaijin !

-1 ( +0 / -1 )

I sincerely hope the child makes a full recovery. What this guy commited was a savage, and sadistic act, fueled by hatred Getting the childs mother to innocently administer the toxin,was a serious assault upon her role as a mother and primary carer. It is hard at times to understand why some people can be so cruel. I hope that awfull man is so severely punished that it will be many years before he released back into civilised society

7 ( +7 / -0 )

People like this need to be locked away for a very, very, very long time.

6 ( +7 / -1 )

I wish for the little boys full recovery - let's hope he gets put into a loving family. The woman is clearly also unfit to ever see the boy again.

2 ( +5 / -3 )

encouraged the woman he was dating to use the drops

and after that:

The boy had been prescribed the eye drops for an eye inflammation

From experience, most prescribed medicines have a "use period". I found this in the Santen website for eye drops:


Basic translation: "For safety purposes, regular eyedrops should be used for a maximum of 3 months, and medical eyedrops for 1 month"

After wanderlusts' comment, I checked out the Japanese news and found this:


"After the eldest son complained of pain, the mother brought the boy to the hospital multiple times for consultation. But since the pain wouldn't stop, the boy was admitted to the prefecture's general hospital on December 8."


Poor kid, poor mother ... put the bastard behind bars.

6 ( +6 / -0 )

I am sick to my stomach on reading this. Exactly how can someone hate a child? This man is not a man, he's an animal. I am normally against the death penalty but I think that in the case where someone willfully, deliberately does action to harm or kill a child, then I say spare nothing to punish this person.

As for the mother,I have to agree with some of the comments that she probably wouldn't have notice the problem. The acid was diluted and the child was being actively treated for a an eye condition. "his eye is not improving, continue medication" would have been the advice of the doctor probably. Poor mother. Poor child. But for the man? Nothing but contempt.

6 ( +6 / -0 )

Who can even think to do this stuff?

8 ( +8 / -0 )

@ elvensilvan: Basic translation: "For safety purposes, regular eyedrops should be used for a maximum of 3 months, and medical eyedrops for 1 month"

To clarify:

This is to avoid bacterial contamination of the actual eye drops from regular or intermittent application, though they usually contain a mild bactericide to reduce the chances of contamination.

It is not a reflection of the required treatment period to take care of a medical problem.

0 ( +0 / -0 )

He hated the boy...

Not blaming the woman, but I'd like to know if she had any inkling at all. Did she sense at all that he didn't like the kid, and hope things would get better, or was he a great actor.

I know so many nice guys who aren't kakkoii, aren't good at talking, not confident, and can't get a girlfriend. But they're decent. But there always seem to be absolute scumbag, low-life, don't deserve to live cretins who always seem to be able to get a girl. And women like to think they have some kind of superior intuition, and can judge people better than men.

Someone needs to shoot the truck driver, the mother needs some minders to make sure she picks the right guy next time, and the boy i hope gets a free life pass to Disneyland or whatever to bring back a smile to his face. Moderator, you are against people making grisly comments, but sometimes venting like that at a rotten case like this is the only thing to stop you from crying.

I thought nothing would surprise me anymore, but it kills me to know there are such evil people walking around.

8 ( +8 / -0 )

There aren't words to describe the anger and disgust I am feeling now. That poor boy. Evil. Pure evil to do that to a little child...to do it to anyone. On the surface, it sounds as if the mother might have genuinely had no idea what her 'boyfriend' was doing. I mean, no-one would ever think that someone would do such a terrible thing. Just like you wouldn't expect to buy a cup of coffee in a cafe only to find it poisoned. We'd like to believe that the people we surround ourselves with have the same level of morals and humanity.

Sometimes, through no fault of their own making, parents find themselves bringing up kids singlehandedly. All precautions should be taken before letting a 'boyfriend' or 'girlfriend' into you life and ultimately near your child(ren). This 'man' is already married. I wonder does he have children? The article doesn't say but I think someone who can commit such a premeditated callous and cruel act isn't a posterboy for a nurturing,balanced parent.

I sincerely hope the little boy gets all the support, nurturing and care to help him overcome this tragedy. If it is determined that the mother wasn't involved and/or didn't know about the abuse, I hope she takes care with who she let's near her son. Children are the most precious things we are given.

3 ( +3 / -0 )


Your post made me cringe!

2 ( +2 / -0 )

my2senseJAN. 27, 2012 - 10:11AM JST

Every year you have a Japanese man or woman or both together do some twisted sick heinous act to a child. A few years ago it was putting them on the porch...then came the washing machine... this guy takes the sick **** gold medal. A jury in the US would do 20 on this guy easy. And then when he got to the can he would be beat daily on his cell block.

But this is Japan and he won't get a prison sentence, and even if he did, no one will beat him or rape him in prison. That just doesn't happen in Japan. He will get, at worst, a long suspended sentence, probably 5 years suspended.

According to my husband the children are third class citizens in Japan, therefore they are considered "property" under Japanese law.The child in question didn't die. The perpetrator beast won't go to jail. That's how it works here.

He will bow and apologize and he will get nothing but a slap on the wrist and get away scot-free. Most savage crimes against children go unpunished in this country. Sad but true reality. The prehistoric government and cold society are the only ones to blame for this.

-1 ( +4 / -5 )

Didn't she ever wonder why the eye drops were always full? Stupid mother.

My mother put super glue in her eye one evening. She would have been blinded if there was no contact in the eye.

Please separate your meds from other things people.

0 ( +2 / -2 )

My post didn't get through so let me change a few words. A totally disgraceful and inhumane act. I agree with all the above in terms of what should be done to this guy. I only wish there will be a follow up story (I'm sure there won't) to what sentence this creature gets off the judge. Sadly i think it will only be a wrist slap.

4 ( +4 / -0 )

That is just sick. If there is a hell, this creep deserves a place in it.

3 ( +3 / -0 )

This dirty, low down, evil horrible scum!! 48 years and he is this stupid?? Who in the hell does this to anybody?? Let alone to a little 5 year old?? Poor little boy and his mother must also be really stupid for even having such an evil boyfriend!!

3 ( +3 / -0 )

Bloody sick! If you can't stand the kid but love your partner, do your best to work things out in a manner that doesn't involve abuse (of either or). If you simply cannot stand it whatsoever, you leave, or find a way to meet only the partner if he/she so insists. I hope this guy faces some stiff punishment.

1 ( +2 / -1 )

I can only reiterate what other people have stated.

But, I also have to wonder how donkusai his mother was to not notice the kid was in severe discomfort using acid laced eye drops.

2 ( +2 / -0 )

So the man is married, has a girlfriend, hates the girlfriend's kid so tries to hurt him. Mom is dating a married loser and was probably well aware that this guy hated her son. Both need to be locked up and that poor kid needs to be raised by someone else who will love him How the heck do you "hate" a five year old? Yeah, they can be loud and dirty but hate?? Christ. Yes. such a "safety" country.

0 ( +2 / -2 )

Exactly what is there to hate a five year old child? Did he steal your job, the last copy of your favourite comic? Excel you at standard I.Q tests (most probably)?

Tamotsu Ito, you are a sick sociopathic pervert who will always be nothing but a burden to everybody and a source of constant grief and sorrow. It should be obvious to you what you need to do. But I doubt you'll ever understand.

2 ( +2 / -0 )

I pray for that poor child and that the guy that did this will spend every remaining day of his life paying back in spades for this!!

0 ( +1 / -1 )

Now this boy is in protective custody. So there must be more going on than we know about. After reading "originalusername" post, I have to wonder how competent this mother is. From April to December this kid was screaming every night. If my son was complaining about his eye medicine I would get him a new medicine. I would definitely research the problem more deeply and quickly than this mother. That being said, never in a million years would I have guessed that someone was putting acid into his eyedrops. I am glad she finally got to the bottom of the problem. I hope her son recovers and gets the love and attention all children deserve.

4 ( +4 / -0 )

This guy is a monster. How could you hate a little kid? I feel so awful for this boy. I hope he gets all the help he needs and this scumbag gets everything he deserves.

3 ( +4 / -1 )

Youre right Elbuda Mexicano"This dirty, low down, evil horrible scum!! 48 years and he is this stupid?? Who in the hell does this to anybody?? Let alone to a little 5 year old?? Poor little boy and his mother must also be really stupid for even having such an evil boyfriend!!" this is really scary" as stated before by I. Weinstein

2 ( +2 / -0 )

Wow I have never heard of anything so evil. This guy is a psychopath. Who else is he secretly abusing? I don't think kids should go to foster care. But, I think if that kid is allowed to go back to his mother, his days a definitely numbered.

0 ( +1 / -1 )

well he hates the kids so what more things to expect?

0 ( +2 / -2 )

If this evil man can do such evil things to a little innocent boy, just no excuse to allow this scum to be free, as other posters mentioned here, if the death penalty was made for a reason, my guess this is as good a reason as any to keep this monster from ever harming innocent children ever again.

0 ( +1 / -1 )

If there was ever a case of an eye for an eye, this is it.

0 ( +1 / -1 )

I don't agree with the posters calling for this man to be blinded. That would cost taxpayers ( including me ) even more than this is already going to cost us. This weirdo must be kept off the streets for a long time, and that's going to cost enough.

-2 ( +0 / -2 )

What really freaks me out is that this absue went on for almost a year. Unbelievable.

2 ( +2 / -0 )

What a vile and disgusting man.. I hope he gets the most severe punishment possible.

What's with everyone attacking the boys mother though? From this article we don't know just how much of the blame she should take. Yes she let this man into the boys life but we don't know if he showed his hatred in front of the mother. The article also doesn't tell us when he put the acid into the eye drops. She could of been using that bottle before he put anything in them. It would of looked suspicious to her if a bottle she hadn't used was already opened.

6 ( +6 / -0 )

The child had to have been in great pain every-time the Mom put the drops in (Neighbors hearing the screams of pain). I being a parent like all others would have questioned the medicine knowing from when are children are babies the difference between I don't like it, to agony in their cries and checked it. Very odd and I hope the investigators find the whole truth and also put away this monster who caused so much pain to a child.

2 ( +2 / -0 )

How could anyone do that to a 5 year old?!? Sick bastard deserves to be locked up in an asylum.

4 ( +4 / -0 )

cornea transplant, any suggestion where the donar cornea should come from ?

2 ( +2 / -0 )

such a "safety" country.

Japan IS a safe country, crime rates are lower than almost anywhere, you're pulling stories from the crime section again to try and act like the safety thing is a myth. It's not, and incidences like this won't change it.

Lock this guy behind bars for a long time. Repulsive, entitled sadist.

-1 ( +2 / -3 )

I know it sounds cruel, but this guys needs to be put not only away, but given the death penalty ASAP, the mom?? Not too sure but she sounds like she is also a basket case too. Poor little boy.

0 ( +1 / -1 )

You don't like the kid, you leave the mom. Its not that hard to figure out.

What is served by hurting the kid like this? Putting an idiot behind bars is about all I can think of. I just wish it could be permanent. And if his cornea's cannot be donated to the poor little boy, they should still go to someone!

2 ( +2 / -0 )

So, if I understand the article well, a married man committed adultery, it is unclear whether with a married or divorced woman, who had a child, and as he didn't need eyewitness or a little child constituting a barrier to his sexual life he decided to reduce another human to blind, human wreck in order to go on undisturbed with his sex.

Asa always I am against prison punishment, instead I would snuggest something useful, that nobody would listen or consider, of course.

The man should receive a multiple, deep microchip implant and assigned to any heavy industrial park to work where there is labour shortage, e.g. paint shop, live there in cheap austere dormitory, work and eat isolated in order to prevent harm to others to the end of his life without retiring at old age for normal or high salary that are payed for dangerous jobs.

All the money he earns, after a minimal deduction for the cheap dormitory, and minimum personal expenses for food and clothing, should go as an allowance for the handicapped boy (not to her mother) till the man is capable of working and earning money.

2 ( +2 / -0 )

am I fuming at this. I personally would like to go smash this guys face in . What a monster. The mum must feel so guilty. I can imaging the boy screaming and fighting to get free as she put the drops in his eyes. I know as I have two little kids and they really fight when it comes to eyedrops or the dentist etc. She must of thought she was doing the right thing. This man should suffer in jail for a long, long time. I hope all the dads in prison kick his ass everyday.

4 ( +4 / -0 )

I get angry and sad every time I just think of this. What a human scum this man is. And what a piece of work the mother too.... to make her child scream in pain for months on end and never even question the doctors about it??

0 ( +0 / -0 )

This definetely falls under the heading of "cruel and unusual"....the man is a monster and not fit to be in society. A very callous way to treat a child, understanding the effect it would have on the boy and urging the process to continue. Lock him up for sure.

0 ( +0 / -0 )

@Mods Have there been any new updates to this story? I'm still curious about the mother. Hope we see a follow-up on this.

0 ( +2 / -2 )

I agree, the mother was dumb for letting this guy anywhere near her kid, but I honestly think that she was oblivious to the fact that he was putting acid in the eye drops ! I can't imagine any mother in the world doing that - not one ! I

0 ( +0 / -0 )

he needs to be sent to a hard labor camp for what he did

-1 ( +0 / -1 )

How often was the boy complaining about his eye? The boy had an existing eye condition during that time. In my opinion, the mother must have known the poor boy was acking from pain!! Did she even bothered checking the odor or expiration date?? Obviously not. He needs to flush down his throat battery acid and have a taste of what the poor little one went through.... Beasts - is what these parents are!! Hate - hate - hate...it's always the same song and dance here!!

0 ( +0 / -0 )

I agree with you Ted Barrera he does need to be locked up in an asylum.

0 ( +0 / -0 )

I think the boy may not be his biological son.

0 ( +0 / -0 )

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