Answer:
The problem with her grandfather's eye can be long sightedness and short sightedness
Step-by-step explanation:
Given that,
Mona's grandfather had been complaining of poor vision for many days.
We know that,
Refractive eye surgery is small surgery.
We need to find the problem with her grandfather's eye
Using given data,
Mona's grandfather had been complaining of poor vision for many days.
So, the doctor did refractive eye surgery of her grandfather's eye.
Due to this surgery, Mona's grandfather can see things clearly.
Refractive eye surgery is a method for correcting vision.
This surgery used for better vision.
This surgery is possible for long sightedness and short sightedness.
Hence, The problem with her grandfather's eye can be long sightedness and short sightedness