from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Alternative spelling of eyestrain.
from The Century Dictionary and Cyclopedia
- n. Weakness resulting from excessive use of the eyes, from use of the eyes in a bad light, or from use of them without correcting glasses when muscular imbalance, astigmatism, or other form of ametropia is present. Headache, dyspepsia, and various other reflex disorders are, at times, due to it.
Sorry, no etymologies found.