Khedr, G., Nabil, K., Kandil, H., Mohamed, A. (2024). CHANGES IN OCULAR ABBERATIONS AND RETINAL IMAGE QUALITY USING RAY TRACE TECHNIQUE AFTER CATARACT SURGERY.. ALEXMED ePosters, 6(3), 58-59. doi: 10.21608/alexpo.2024.317005.1933
Gamal Mohamed Omar Khedr; Karim Mahmoud Nabil; Hazem Wahid Kandil; Ahmed Moustafa Mohamed Hassan Mohamed. "CHANGES IN OCULAR ABBERATIONS AND RETINAL IMAGE QUALITY USING RAY TRACE TECHNIQUE AFTER CATARACT SURGERY.". ALEXMED ePosters, 6, 3, 2024, 58-59. doi: 10.21608/alexpo.2024.317005.1933
Khedr, G., Nabil, K., Kandil, H., Mohamed, A. (2024). 'CHANGES IN OCULAR ABBERATIONS AND RETINAL IMAGE QUALITY USING RAY TRACE TECHNIQUE AFTER CATARACT SURGERY.', ALEXMED ePosters, 6(3), pp. 58-59. doi: 10.21608/alexpo.2024.317005.1933
Khedr, G., Nabil, K., Kandil, H., Mohamed, A. CHANGES IN OCULAR ABBERATIONS AND RETINAL IMAGE QUALITY USING RAY TRACE TECHNIQUE AFTER CATARACT SURGERY.. ALEXMED ePosters, 2024; 6(3): 58-59. doi: 10.21608/alexpo.2024.317005.1933
CHANGES IN OCULAR ABBERATIONS AND RETINAL IMAGE QUALITY USING RAY TRACE TECHNIQUE AFTER CATARACT SURGERY.
1Department of Ophthalmology, Faculty of Medicine, Alexandria University
2Department of Ophthalmology, Faculty of Medicine, University of Alexandria
Abstract
The surgery of cataract is challenging in all the world as cataract itself is one of the most common reason of blindness and it comes as number two in the causes of vision impairment. Dysfunctional Lens Syndrome is the crystalline lens changes that took place lens due to age changes. The dysfunctional lens index is measurement of how the lens is performing objectively. A ray-tracing aberrometry system can measure (DLI) in patients with nuclear cataracts. The wave front analysis main function is isolating lower order aberrations effect and higher order aberrations, in addition to the contribution of the aberrations on optical quality. The optical system quality parameters include the Strehl ratio, (PSF), and (MTF). Point Spread Function is defined as spatial light that is distributed from a point source imaged on the retina.The modulation transfer function is contrast of image divided by the contrast of object.
AIM: To study the changes in ocular wavefront aberrations and the effect on retinal image quality post phacoemulsification in senile cataract patients using iTrace® wavefrontaberrometer.
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