refractive surgery for anisometropia · 9/25/2017 1 refractive surgery for anisometropia ahmed...
TRANSCRIPT
9/25/2017
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Refractive surgery for anisometropia
Ahmed Awadein, MD, FRCS
Cairo University
Why is anisometropia aproblem in children?
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It is Common
It is difficult to manage
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O Limited time frame for management for fear
of amblyopia
O Problems with glasses
O Tolerance
O Aniseikonia?
O Contact lenses are liable to complications
It is controversial
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When there is no choice
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When there is no choice
When there is no choice
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LASIK Phakic
IOL
Literature review
O 25 articles, including 597 patients
O 21 articles reported the use of corneal refractive surgery in the treatment of myopic anisometropia for 318 patients
O 13 photorefractive keratectomy (PRK) or laser epithelial keratomileusis (LASIK)
O 8 laser in situ keratomileusis (LASIK).
O 11 articles reported the use of phakicintraocular lenses for treating high myopia or anisometropic amblyopia, including 61 patients (75 eyes).
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O Age
O Pre- and postoperation best-corrected vision
acuity (BCVA)
O Spherical equivalent (SE) were compared in
corneal refractive surgery and phakic IOL
So what did they find?
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O No difference in postoperative visual acuity
O No difference in postoperative spherical
equivalent
O Improvement in binocular function in both
groups
So
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O A 7-year old boy
O Cycloplegic refraction:
O OD: -8.50 DS -1.25 DC x 180
O OS: -0.25 DS
O BCVA:
O OD: 0.3
O OS: 1.00
O No measurable fusion
A (1)- LASIK B (2)- Phakic IOL
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Is anisometropia a stable condition
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Long term follow-up?
No randomized studies?
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Ectasia?
Is it predictable?
White-to-White?
Is it constant?
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A (1)- LASIK B (2)- Phakic IOL
Thank You