Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Samir I. Sayegh"'
Autor:
Samir I Sayegh
PurposeTo show current approaches for overcorrecting astigmatism and “flipping” its axis need be reconsidered in light of methods we introduce that take into account both mismatch and misalignment of the toric intraocular lens (tIOL) with respect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea38e85855e32e2238b27e826970a9c3
https://doi.org/10.1101/2020.09.30.20203380
https://doi.org/10.1101/2020.09.30.20203380
Autor:
Samir I Sayegh
PurposeTo demonstrate that the total loss of astigmatism as a consequence of misalignment or rotation of a toric intraocular lens (tIOL) can occur much earlier than the widely believed and taught 30 degrees. To give a precise surgically useful estima
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d90d46a63601268a2b078709cbf4f218
https://doi.org/10.1101/2020.06.09.20126987
https://doi.org/10.1101/2020.06.09.20126987
Autor:
Lauren Gabra, Samir I Sayegh
Publikováno v:
Scientific Reports
Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
This study develops a method to determine toricity ratios used by arbitrary toric intraocular lens calculators. Access to this information allows for the improvement of refractive results. We derive the Sayegh-Gabra formula, which uses input and outp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c259ecb2fbe83acfea225beed61c6d6
https://doi.org/10.1038/s41598-018-22591-4
https://doi.org/10.1038/s41598-018-22591-4
Autor:
Ryan L. Shelton, Stephen A. Boppart, Woonggyu Jung, Jeehyun Kim, Daniel T. McCormick, Samir I Sayegh
Publikováno v:
Journal of Biophotonics. 7:525-533
Optical coherence tomography (OCT) has long been used as a diagnostic tool in the field of ophthalmology. The ability to observe microstructural changes in the tissues of the eye has proved very effective in diagnosing ocular disease. However, this t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86c20a668082949dcac9621b3b7fdb60
https://doi.org/10.1002/jbio.201200243
https://doi.org/10.1002/jbio.201200243
Autor:
Samir I. Sayegh, Ryan M. Nolan, Woonggyu Jung, Jeehyun Kim, Daniel T. McCormick, Eric J. Chaney, Charles N. Stewart, Stephen A. Boppart
The goal of this study was to evaluate the ability of our handheld optical coherence tomography (OCT) scanner to image the posterior and anterior structures of the human eye, and especially the individual layers of the retina, and to compare its diag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bdb748fa1cac2b1cbb1bc73629233e6
https://europepmc.org/articles/PMC4108297/
https://europepmc.org/articles/PMC4108297/
Autor:
Samir I. Sayegh, David Hjelmstad
Publikováno v:
Ophthalmic Technologies XXIV.
We present a method for calculating the ideal toric lens to implant in astigmatic patients following cataract surgery. We show that the online calculators provided by major toric IOL manufacturers are insufficient for both theoretical and practical r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a5e2b6a9e1f0ed5bf1fe4ed9ada7f7a
https://doi.org/10.1117/12.2041031
https://doi.org/10.1117/12.2041031
Autor:
Samir I. Sayegh, Tibor Juhasz, Mali Meunier, Karin R. Sletten, Kimberly G. Yen, Frieder Loesel, Christopher Horvath, Christine Eckhoff, Ron M. Kurtz
Publikováno v:
Ophthalmic Surgery, Lasers and Imaging Retina. 30:742-749
* BACKGROUND AND OBJECTIVE: To develop an animal model for evaluation of femtosecond laser intrastromal refractive surgery. * METHODS: Intrastromal photodisruption was performed in New Zealand Albino rabbits using a femtosecond laser system. This sur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7eb75f3e9d94fbe23da3ced525273df
https://doi.org/10.3928/1542-8877-19991101-10
https://doi.org/10.3928/1542-8877-19991101-10
Autor:
Samir I Sayegh, Jessica Taibl
Publikováno v:
Ophthalmic Technologies XXIII.
Accurate diagnosis and treatment of disease is a function of how well the pathology can be imaged. Coregistering images from different modalities can offer significant advantages. Multi-modal imaging is finding its place in Ophthalmology and we illus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7832ae3ee1b39431a46ee4177dd29231
https://doi.org/10.1117/12.2004743
https://doi.org/10.1117/12.2004743
Autor:
David Hjelmstad, Samir I Sayegh
Publikováno v:
Ophthalmic Technologies XXIII.
We present a symbolic approach based on matrix methods that allows for the analysis and computation of intraocular lens power following cataract surgery. We extend the basic matrix approach corresponding to paraxial optics to include astigmatism and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d579737f1ffcd15b2161d01c9ae351b
https://doi.org/10.1117/12.2003175
https://doi.org/10.1117/12.2003175
Publikováno v:
Ophthalmic Technologies XXIII.
We propose a method that allows an inexperienced observer, through the examination of the digital fundus image of a retina on a computer screen, to simply determine the presence of a cataract and the necessity to refer the patient for further evaluat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16f3de5e9b270cb06893cb2ac41fedb3
https://doi.org/10.1117/12.2004602
https://doi.org/10.1117/12.2004602