Table 3 Initial and final best-corrected visual acuity of eyes with ocular toxoplasmosis (n = 311 eyes*).

From: Clinical manifestations and visual outcomes associated with ocular toxoplasmosis in a Brazilian population

Best-corrected visual acuity

At presentation

Final

N (%)

N (%)

Eyes with active lesions at presentation (n = 133 eyes)

 Normal vision (≥ 20/40)

47 (35.3)

75 (56.4)

 Mild visual impairment (20/50 to 20/63)

17 (12.8)

12 (9.0)

 Moderate visual impairment (< 20/63 to 20/160)

24 (18.1)

11 (8.3)

 Severe visual impairment (≤ 20/200 to 20/400)

4 (3.0)

7 (5.3)

 Blindness (< 20/400)

41 (30.8)

28 (21.0)

Eyes with inactive lesions at presentation (n = 178 eyes)

 Normal vision (≥ 20/40)

81 (45.5)

 

 Mild visual impairment (20/50 to 20/63)

17 (9.5)

 

 Moderate visual impairment (< 20/63 to 20/160)

14 (7.9)

 

 Severe visual impairment (≤ 20/200 to 20/400)

16 (9.0)

 

 Blindness (< 20/400)

50 (28.1)

 
  1. *Best-corrected visual acuity could not be measured in 25 eyes (1 with an active lesion and 24 with inactive lesions) as subjects were preverbal children. For those with inactive lesions visual acuity at presentation = final visual acuity. Seven adults (8 eyes) were not followed until inactivation of ocular disease, and were removed from this analysis.
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