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MYOPIA MANAGEMENTCASE: Low Myopic Child

Will Skoog OD, FAAO
i

History

11-year-old white female presented for myopia management consultation. She was in 5th grade. She had read about orthokeratology in a magazine advertisement. Her current spectacles were six months old. She was a competitive swimmer and water polo player. She had no history of myopia management. Her mother was nearsighted and her father wore reading glasses.

Examination

  • Visual Acuities (VAs)
      • Without correction: OD: 20/100, OS: 20/100
      • With correction: OD: 20/20, OS 20/25
  • Lensometry:
      • OD: -2.00DS
      • OS: -2.25 -0.25 x 180
  • Manifest refraction:
      • OD: -2.00DS, VA 20/20
      • OS: -2.00DS, VA 20/20
  • Slit Lamp Examination:
      • Unremarkable OD, OS
  • Topography OD, OS (Figure 1):

Figure 1

    • Axial length
        • OD: 24.91 mm
        • OS: 24.97 mm
    • Dilated Fundus Examination (DFE)
        • Unremarkable
+

Decision-Making Process

  • Need to consider the refractive error and the corneal topography when deciding between myopia management options.
  • She was a candidate for all myopia management treatments given refractive error and corneal topography.
  • She was a swimmer and water polo player. This positioned orthokeratology at the top of my list.

FItting and Evaluation

  • Orthokeratology lenses were fit empirically with refraction, simulated keratometry, and horizontal visible iris diameter (HVID).
  • Initial lens parameters:
  Power BCR OAD Material RZD LZA
OD +0.50 DS 8.7mm 11.5mm HDS 100 – Red 525 32/33
OS +0.50 DS 8.7mm 11.5mm HDS 100 – Blue 525 32/33

 

  • Dispense Visit
      • OU: Fluorescein pattern: Bullseye pattern with adequate edge lift.
      • VA:
        • OD: 20/20
        • OS: 20/20
      • OR:
        • OD: +0.25 DS
        • OS: plano
  • One week follow-up visit (approximately 4 pm)
      • VA without correction
        • OD: 20/20
        • OS: 20/20
      • Manifest refraction
        • OD: plano
        • OS: plano
      • Topography – tangential maps OD, OS (Figure 2)

Figure 2

      • She did not bring the lenses with her so we could not evaluate them.
  • One month follow-up visit
      • VA without correction:
        • OD: 20/20
        • OS: 20/20
      • Manifest refraction
        • OD: plano
        • OS: plano
      • Topography OD, OS (Figure 3)

Figure 3

  • Fluorescein pattern
      • OU: bullseye pattern, well centered
  • VA
      • OD: 20/20
      • OS: 20/20
  • OR
      • Plano OU

Clinical Pearls

  • It is important to take into consideration the patient’s activities and hobbies when deciding between myopia management options.
  • Take multiple topographies per visit!
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