Posterior Segment Intraocular Foreign Body: Extraction Surgical Techniques, Timing, and Indications for Vitrectomy

Table 3

Conversion of raw points into OTS category and calculating the likelihood of the final visual acuity in five categories. The Ocular Trauma Score (OTS). Reproduced from Kuhn et al. [8].

Sum of raw points	OTS	No Light perception	Light perception/hand motion	1/200–19/200	20/200–20/50	>20/40
0–44	1	74%	15%	7%	3%	1%
45–65	2	27%	26%	18%	15%	15%
66–80	3	2%	11%	15%	31%	41%
81–91	4	1%	2%	3%	22%	73%
92–100	5	0%	1%	1%	5%	94%