"It is not a transporter side effect."

Xeelia scans the girlfriend and boyfriend at the same time to verify that they are in fact separate entities and this isn't the result of an anomalous conjoined lifeform.

"You will scan yourself for any attentendant side effects or anomalies."

"- scan myself? I don't have one of those doodads..." she says.

"Do you just mean, is there anything else wrong?" says her boyfriend.

"Correct."

"I'm really stressed out because I have gone blind and I don't like it! I'm not - nauseated or in pain or anything -"

Xeelia does not have any explanations in her Borg knowledge bank for this occurence.

However, in her other knowledge bank....

"Please describe your mental state prior to the blindness."

"Uh - we'd gotten split up in the crowd, I was trying to find him without making a scene, I went up a flight of stairs in the plaza to get a better look and I didn't see him but I saw the horizon, and then I looked back at all the people coming out of the transporter receiving hall and then my vision went black, around the edges, and it was all gone in less than a minute and I started yelling and he found me..."

"Describe how you were feeling in more detail."

"- anxious? Overwhelmed?"

"Prior to the blindness?"

"Yeah? I mean we're on - we're on Katme, we're clean, it's a lot...?"

"Correct."

"I believe your emotional malfunction may be resulting in your ocular one."

What should be done about this. Xeelia reaches out for the other borg unit present.

"You will hug this." Xeelia orders, holding up a tiny borg mouse by the scruff of its neck. 

"Beep."

"- I will hug what," says the patient, exasperated.

"It's a mouse," says her boyfriend, "a cyborg mouse, I'm not sure it's big enough to hug?"

"Very small hugs will suffice."

The boyfriend takes the mouse and puts it in his girlfriend's hands. She pets it awkwardly.

"I still can't see," she says, after a moment.

Beep "beeps" when petted. 

She holds out the mouse and her boyfriend takes it back and offers it back to Xeelia. "I did already hug him on my way here," she adds, patting her boyfriend's arm.

"This is unanticipated." 

Xeelia can not think of where to find a larger mouse so she will need to devise novel measures.

Perhaps if the blindness is a response to the substantial change in the patient's life then reversing that change will fix the blindness?

Hm... no - new changes should be overcome, not surrendered to.

"Please lie back on this table while I administer sedatives to decrease your bodies' physiological symptoms of stress and anxiety."

She lies down, patting the table to make sure she doesn't flop off of it.

She will not flop off of it.

"This will not feel like much of anything as we do not use primitive needles in our medical equipment."

Xeelia presses a few buttons, activating the sedative translators - using a modified version of the cocktail used to prevent newly assimilated borg from having averse reactions.

"You should feel weightless, and focus may be impaired. If very recent events become difficult to recall that is also an expected effect."

Xeelia would tell the patient not to worry, but it would be redundant.

The patient sighs and relaxes. "I didn't... want to forget... the horizon for the first time..."

"You will focus on the present moment please."

She doesn't say anything else, just squeezes her boyfriend's hand.

"Report how many digits I am holding up in front of your face."

"Uh -" Blink, blink. "- four. Oh!"