Final answer:
Nurses typically use their right eye to examine the internal structures of the patient's left eye, focusing on the lens, retina, and extraocular muscles to ensure proper functioning and health of the eye.
Step-by-step explanation:
When a nurse needs to examine the internal structures of the client's left eye, they would typically use their right eye to look through an ophthalmoscope. The reason for this is due to the alignment of the nurse's and patient's eyes, which allows for a clearer, more direct view of the structures within the patient's eye. This practice helps in the evaluation of ocular health, including the assessment of the lens, which can be damaged if it is incapable of focusing an image on the retina, leading to visual impairment.
Anatomy of the Eye
The eye is a complex organ with several layers: the fibrous tunic, vascular tunic, and neural tunic, with the retina positioned within the neural layer. When light enters the eye, it passes through the lens, which focuses the light rays onto the retina. If the lens is damaged or not functioning correctly, it cannot properly focus light onto the retina, which can result in vision issues.
Examining Eye Movement
Eye movements are also crucial for proper vision. Testing eye movement involves tracking the movement of the eyes, ensuring proper function of the extraocular muscles and the related neural pathways. Issues with these muscles, such as in internuclear ophthalmoplegia, can result in diplopia or double vision. Therefore, proper examination of eye movement is critical.