Answer: Asthenopia
Explanation:
It can be normally defined as eye strain which is an eye condition that is manifested through the non specific symptoms such as pain in or around eyes, headache, occasional double vision.
These symptoms occur when computer work is done, after reading, some tedious tasks.The ciliary muscles tightens when focus for a long time on a computer screen or a book.
Hence, the correct answer is Asthenopia.