Final answer:
The main character's changing attitude towards his new eyes serves as a metaphor for growth and the acquisition of knowledge, reflecting key themes of the story through his adaptation and acceptance process.
Step-by-step explanation:
The development of the main character's attitude towards his new eyes is a central element in the story that contributes to the exploration of the theme growth through adversity and perseverance. The protagonist's journey from confusion and irritation towards acceptance and understanding parallels the theme of enlightenment discussed in Plato's Allegory of the Cave through the character's slow adaptation to his new vision. As the character's attitude evolves, the story examines the human experience of overcoming challenges and the importance of accepting change to gain a deeper understanding of oneself and the world. This transformation also conveys the message that knowledge and awareness are often gained gradually and through difficult experiences, which is a common motif in literature.