[Jon44]

I'll be first to suggest this could be entirely psychosomatic (but feel free to post snide responses anyway), but I feel a slight dizziness after doing the retina scan--feels like a much milder version of when you go to optometrist and they do retina exams with very bright lights.
Since I also know I'm very suggestible-just curious if anyone else has experienced this?

[theelite1x87]

Are you looking directly into that red IR LED that lights up? That might cause it. Look directly at screen like it says. I use it daily ,no issues here. But first few times I looked into that red LED and it temporarily made my eyes hurt. Same hurt as looking directly into any bright light.

[wolverine2003]

It's an Iris scanner.

[bembol]

I hated it when I had the Note 7 and that hasn't changed with the S8/+.

Not sure if it's because I wear RX glasses or I'm just not holding it right but it's a PITA for me. Setting it up is easy my issue is afterwards.

[donm527]

I remember when the Note was out that someone from Droid Life mentioned not liking the Iris scanner because it also affected his eyes in similar fashion. For most it probably won't affect most.

If I recall there Samsung put warning message too before using it... suggesting using the scanner at 9.8 (25 cm) to 13.8 inches (35 cm) from your face. This is probably due to concerns that the infrared beam could cause harm after regular use at close distances. Also suggested that it shouldn't be allowed for babies or small children to use the iris scanner.

Did Samsung carry over those warnings to the S8?

I'll be first to suggest this could be entirely psychosomatic (but feel free to post snide responses anyway), but I feel a slight dizziness after doing the retina scan--feels like a much milder version of when you go to optometrist and they do retina exams with very bright lights.
Since I also know I'm very suggestible-just curious if anyone else has experienced this?

[Viscomi4444]

I remember when the Note was out that someone from Droid Life mentioned not liking the Iris scanner because it also affected his eyes in similar fashion. For most it probably won't affect most.

If I recall there Samsung put warning message too before using it... suggesting using the scanner at 9.8 (25 cm) to 13.8 inches (35 cm) from your face. This is probably due to concerns that the infrared beam could cause harm after regular use at close distances. Also suggested that it shouldn't be allowed for babies or small children to use the iris scanner.

Did Samsung carry over those warnings to the S8?

No, in that video he said he THOUGHT he read that the retina scanner effected your eye sight.

He laughed while saying it.

[donm527]

hmm... thought it was him experiencing eye throbbing or pain. Guess another podcaster.

No, in that video he said he THOUGHT he read that the retina scanner effected your eye sight.

He laughed while saying it.

[Matty]

I'll be first to suggest this could be entirely psychosomatic (but feel free to post snide responses anyway), but I feel a slight dizziness after doing the retina scan

If you don't feel comfortable using the Iris scanner then just use one of the many other unlocking methods. 😃

just because no one else feels dizzy while doing it doesn't mean it's not happening to you. It could be all in your head but again, if it worries you then just the fingerprint scanner instead.

I haven't had any problems with the scanners on previous devices, but just make sure you not looking directly at the light and look more at the screen.

[theelite1x87]

I remember when the Note was out that someone from Droid Life mentioned not liking the Iris scanner because it also affected his eyes in similar fashion. For most it probably won't affect most.

If I recall there Samsung put warning message too before using it... suggesting using the scanner at 9.8 (25 cm) to 13.8 inches (35 cm) from your face. This is probably due to concerns that the infrared beam could cause harm after regular use at close distances. Also suggested that it shouldn't be allowed for babies or small children to use the iris scanner.

Did Samsung carry over those warnings to the S8?

The distance is more for the sensor to read you best. It's focal range is preset to be in focus at those distance ranges. Anything closer and your iris is out of focus for the scanner, can't read. Any further and it's just too far away to get a detailed reading.

[JHBThree]

The distance is more for the sensor to read you best. It's focal range is preset to be in focus at those distance ranges. Anything closer and your iris is out of focus for the scanner, can't read. Any further and it's just too far away to get a detailed reading.

The minimum distance is also to protect your eyes. Any closer than that and it could hurt them.

[Almeuit]

It wouldn't surprise me if some peoples eyes may not take kindly to this way of unlocking.

[Viscomi4444]

The minimum distance is also to protect your eyes. Any closer than that and it could hurt them.

Well yea...if you put your eyes centimeters away from any flahing light, it's going to hurt. Has nothing to do with the sensor itself.

[GizmoEV]

Coming from a Microsoft Lumia 950XL, I was surprised that setup didn't allow multiple reads with and without corrective lenses and different lighting conditions. When the S8 iris scan works it is faster than the 950XL but it is significantly less reliable for me because I wear bifocals.

[Tim1954]

Mine never worked. Tells me to clean the lense...

[ScreaminChameleon]

Mine works okay, but I feel like I have to move the phone around too much sometimes or open my eyes wider than what I might feel is necessary. I never tried it on my Note 7, so this is the first I have used it.

[ol_jackburton]

I wear RX glasses and the iris scanner has worked very well, much better than the one on the Note 7 did. Face recognition has been a bust though.

[Viscomi4444]

My iris sensor is flawless.

[ol_jackburton]

from page 37 the S8 manual.

[Gary02468]

What I don't understand is why the iris-scan LED is any riskier than the notification LEDs or the screen itself, which seems at least as bright. Is the IR frequency somehow worse?

[Viscomi4444]

What I don't understand is why the iris-scan LED is any riskier than the notification LEDs or the screen itself, which seems at least as bright. Is the IR frequency somehow worse?

Well the Iris scanner flashes faster. The flashes in quick succession can cause seizures. It's basically just to cover Samsung's ***.

What I don't understand is why the iris-scan LED is any riskier than the notification LEDs or the screen itself, which seems at least as bright. Is the IR frequency somehow worse?

[Gary02468]

Well the Iris scanner flashes faster. The flashes in quick succession can cause seizures.

Hm, to me it looks like it's just solidly on until the scan succeeds. But maybe it's flashing too fast for me to notice.

[heavyvino]

from page 37 the S8 manual.

Read the manual, for the love of Pete, men don't read manuals.

[theelite1x87]

That disclaimer is very standard. It's referring to the bright LED , not the scanner itself. You should follow the same precautions regarding the regular LED in the back, it'll cause eye pain as well. As far as the seizure thing, that's the exact same disclaimer I've seen at the beginning of every video game I've ever played. If your not epileptic you won't have issues.

[Mr_Spencer]

from page 37 the S8 manual.

I do recall seeing this warning when initially setting up the iris scanner. I'm not sure why people are interpreting it in the most convenient way. It clearly says not to stare into the scanner at less than 20cm.
It's not a regular LED bulb like your notification LED that flashes. It seems like a more concentrated/focused LED beam. Think like those green laser beams that people were shining at the airplanes a few months ago, just tuned down. Lol. (that's my understanding don't kill me.) either way I've stuck with facial recognition and the FP scanner.

[JHBThree]

Well yea...if you put your eyes centimeters away from any flahing light, it's going to hurt. Has nothing to do with the sensor itself.

Yes, it does. The specific type of sensor being used can cause damage to your eyes if it's used too closely.