retina
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retina
The light-sensitive layer at the inner back of the eye in vertebrates and cephalopods. It converts light stimuli into nerve signals.
Bei einer Netzhautablösung ist eine sofortige ärztliche Behandlung erforderlich, um die Sehkraft zu erhalten.
In the case of retinal detachment, immediate medical treatment is required in order to preserve eyesight.
The word consists of 'Netz' (net) and 'Haut' (skin). The name comes from the fact that this layer in the eye is traversed by a fine network of blood vessels and nerves.
Die Netzhaut ist für das Sehen von entscheidender Bedeutung.
The retina is crucial for vision.
'Netzhaut' (retina) is a technical term from medicine and biology. Although most people know the word, it is mainly used in medical or scientific contexts.
Der Augenarzt hat meine Netzhaut untersucht.
The ophthalmologist examined my retina.
In a medical context, typical combinations are 'die Netzhaut untersuchen' (to examine the retina), 'Schäden an der Netzhaut' (damage to the retina), or the condition 'die Netzhautablösung' (retinal detachment).
Eine Netzhautablösung muss sofort behandelt werden.
Retinal detachment must be treated immediately.
cornea / callus
'die Hornhaut' (the cornea) and 'die Netzhaut' (the retina) are both parts of the eye, but they are located in different places and have different functions. The cornea is at the front of the eye and is transparent. It protects the eye and helps refract light correctly. The retina is inside at the back of the eye. It receives light and passes on signals. The words can be confused because both are important parts of the eye. As a simple guide: Hornhaut at the front, Netzhaut at the back.
Bei der Untersuchung prüft der Augenarzt die Netzhaut sehr genau.
During the examination, the ophthalmologist checks the retina very carefully.
Vor dem Termin erklärt die Ärztin ihr, dass die Hornhaut leicht verletzt ist.
Before the appointment, the doctor explains to her that the cornea is slightly injured.