Visual Acuity and Sensitivity

on 12.6.08 with 0 comments



  • Each eye oriented so that image falls within fovea centralis.

  • Fovea only contains cones.

  • Degree of convergence of cones is 1:1.

  • Peripheral regions contain both rods and cones.

  • Degree of convergence of rods is much lower.

  • Visual acuity greatest and sensitivity lowest when light falls on fovea.

Category: Ophthalmology Notes

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