Statistics on Visual problems in premmie infants

Stats on Visual problems

• Blindness – less than 1% to 5%
• Visual acuity – 8% to 20%
• Refractive errors – 3% to 33%
• Strabismus – 5% to 39%
• Stereopsis – 8% to 50%
• Contrast sensitivity – 10% to 60%
• Oculomotor control – 10% to 25%
• Visual fields – 5% to 23%

{Wilson-Costello, et al., 2007, Crofts, King, & Johnson, 1998, Powls, 1997 #21, Stephenson, 2007 #555, Dowdeswell, 1995 #560, Schalij-Delfos, 2000 #574, Jongmans, 1996 #562}