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مقاله
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Abstract
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Title:
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Comparison of the visual acuity of post refractive surgery's patients using ETDRS and E-chart
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Author(s):
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Ghorbanhosseini S, Hashemi H, Jafarzadehpur E, Yekta A, Khabazkhoob M
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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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Ebrahim Jafar zade pour
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Affiliation :(optional)
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Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran
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E mail:
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ejafarzadehpur@tums.ac.ir
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Phone:
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Mobile:
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09123854603
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Purpose:
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To compare the visual responses of post refractive surgery's patients using ETDRS (Early Treatment Diabetic Retinopathy Study Chart) and E-chart with and without Color filters
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Methods:
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The Log MAR VA (Logarithm of the Minimum Angle of Resolution Visual Acuity) of 70 patients with the mean age of 26.2±3.76 years (from 19-34 years) who had undergone PRK (Photorefractive Keratectomy eye surgery) (the range of post operation refractive error: ±0.5 D) was measured under the light conditions of with and without asymmetrical glare by using red, green, and yellow filters and ETDRS and E-chart
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Results:
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In both light conditions of with and without glare, the mean visual acuity of the three filters in right and left eyes was significantly better with the E-chart versus the ETDRS (P<0.0001). Only in the glare light condition, the mean visual acuity of the left eye showed no significant difference between the two charts using the red filter (P=0.30
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Conclusion:
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The better visual responses in different light conditions and visual adaptation with the E-chart versus the EDTRS chart can be due to better estimation of their direction by Persian speaking persons. these two charts cannot be used interchangeably
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Attachment:
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