. Author manuscript; available in PMC: 2022 Mar 1.

Published in final edited form as: Vet Ophthalmol. 2020 Dec 29;24(2):156–168. doi: 10.1111/vop.12855

Table 4.

Select findings from cases in which owners reported a protracted period of vision loss (> 4 weeks or retained some vision) vs. lost vision within 4 weeks.

	Subcategory	Vision lost within 4 weeks	Vision lost in greater than 4 weeks or not lost completely	Statistical analysis (Chi-squared test)
Difference between day and night vision	No difference	247/350 (71%)	45/84 (54%)	X² (2, N = 434) = 9.05 P = 0.011
	Night worse than day	79/350 (23%)	31/84 (37%)
	Day worse than night	24/350 (7%)	8/84 (10%)
Effect of treatment on vision	No effect	113/146 (77%)	19/37 (51%)	X² (3, N = 183) = 13.09 P = 0.005
	Partial vision recovery	7/146 (4.8%)	7/37 (19%)
	Full vision recovery	1/146 (1%)	1/37 (3%)