sehend
sighted
Having the ability to see; not blind.
Der Verein bietet Kurse für blinde und sehende Menschen an.
The association offers courses for blind and sighted people.

sighted
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sighted
Having the ability to see; not blind.
Der Verein bietet Kurse für blinde und sehende Menschen an.
The association offers courses for blind and sighted people.

'Sehend' (sighted/seeing) is the present participle of the verb 'sehen' (to see). It functions like an adjective and literally means 'a person who is currently seeing' or 'a person who can see.'
Ein sehendes Kind beschrieb dem blinden Freund die Farben des Regenbogens.
A sighted child described the colors of the rainbow to the blind friend.
This adjective is very often used as the opposite of 'blind' (blind) to describe or compare groups of people.
Die neue App soll die Kommunikation zwischen sehenden und blinden Menschen erleichtern.
The new app is intended to make communication between sighted and blind people easier.
The expression 'sehenden Auges' (with eyes open) is a fixed adverbial phrase. The form 'sehenden' does not change. The expression usually comes directly before the verb or at the beginning of the sentence and describes how an action is carried out.
Sehenden Auges lief er in sein Verderben.
With his eyes open, he ran toward his ruin.
conscious / deliberate
'bewusst' and 'sehenden Auges' can both express that someone knows exactly what they are doing. 'bewusst' is a normal, versatile word: someone acts deliberately or is clear about something. 'sehenden Auges' (with eyes open) is a fixed expression and means that someone recognizes a bad consequence and still continues to act. So it fits especially when someone clearly sees a danger or problem. The words can be confused because both include knowledge and intention. But 'sehend' by itself normally only means that someone can see; the similar meaning arises here only in the expression 'sehenden Auges'.

Trotz der Warnung ging er sehenden Auges in ein großes finanzielles Risiko.
Despite the warning, he went into a major financial risk with his eyes open.
Das Team trifft die Entscheidung bewusst, obwohl nicht alle damit zufrieden sind.
The team makes the decision deliberately, even though not everyone is happy with it.