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Br J Ophthalmol 89:1403-1406 doi:10.1136/bjo.2005.074955
  • Clinical science
    • Scientific reports

Incidence and severity of keratoconus in Asir province, Saudi Arabia

Table 2

 Distribution of corrected visual acuity with spectacles and rigid contact lenses

Visual acuitylevel With spectacle correction With rigid contact lenses
No (eyes) Cumulative No (eyes) Cumulative
6/4.5 – 0% 7 5.3%
6/5 – 0% 6 9.85%
6/6 36 33.3% 110 93.18%
6/7.5 8 40.7% – 0%
6/9 22 61.1% – 0%
6/12 42 100% 5 96.97%
6/15 – 0% 3 99.24%
6/18 – 0% 1 100%
Total 108 eyes 100% 132 100%

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