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مقاله
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Abstract
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Title:
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Evaluation of the validity of the Simplified Javal’s Rule in 147 Pre-Op Cataract Eyes
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Author(s):
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Ghandehari-Motlagh Mohammad, Akbari Mojtaba
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Presentation Type:
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Poster
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Subject:
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Cornea and Anterior Segment
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Others:
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Presenting Author:
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Name:
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Mohammad Ghandehari-Motlagh
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Affiliation :(optional)
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Optometrist (Sadra Eye Surgery Center) ,Isfahan- Iran
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E mail:
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oculist233@aol.com
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Phone:
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03116689608
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Mobile:
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09132000891
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Purpose:
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To evaluate validity of simplified Javal’s rule(Total Ast=Corneal Ast- 0.50@90) in 147 pre-op cataract eyes.
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Methods:
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Due to change in lens tissue and structure in a opacified crystalline lens, we conceive the simplified javal’s rule may not be valid in cataract cases.In this cross-sectional study,147 pre-op cataract eyes, with and against the rule astigmatism, were enrolled.Ocular biometry(with IOL master 500)and keratometry and refraction findings were recorded. Eyes with oblique astigmatisms were excluded from the study.
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Results:
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Mean age of our patients was 64.95 +_9.86 yrs/old that confirms on senile cataract. Mean Axial length and average keratometry were respectively 23.86 and 44.62.Prevalence of systemic diseases diabet and high blood pressure were respectively 43(29.25% ) and 44( 29.93%)that is an emphasis on these diseases. The Corneal astigmatism axis is relatively correlated with refractive astigmatism in cataract eyes(r= 0.493).Simplified Javal’s rule is valid in cataract eyes(P<0.001).
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Conclusion:
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Due to bad cooperation or tear film deficiency of aged patients when keratometry,simplified Javal’s rule will be a valid formula in pre-op cataract eyes and can be used for cylinder confirmation.
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Attachment:
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