A Study Comparing Corneal Versus Lenticular Astigmatism in Spanish-Speaking Children in Brooklyn, New YorkOptometry - Journal of the American Optometric Association, Volume 80, Issue 6, Pages 314-315, June 2009, Authors:Debora Lee, O.D.; Natalie Hoshi, O.D.; Cristina Llerena, O.D.; Thuy-...
During a second stage of the disease, stromal and epithelial oedema pro duces glare and visual loss due to irregular astigmatism and the rupture of sub-epithelial vesicles can be painful. In the final stage, cen tral sub-epithelial scarring results in an opaque cornea that may become ...
Irregular astigmatism resulting from corneal distortion is associated with a decrease in the optical quality of the cornea and a substantial increase in higher-order aberrations [111]. The ocular wavefront helps understand patients' complaints better. Eventually, it improves the quality of vision with ...
also found that in the absence of lenticular astigmatism (LA), there was a difference between RA and the astigmatism measured by corneal topography [11]. This was ascribed to the contribution of the irregular astigmatism component i.e., the asymmetry of topographic hemi-meridians. During ...
Small incision lenticule extraction (SMILE) for myopia and myopic astigmatism involves the creation of an intrastromal lenticule using the VisuMax 500-kHz femtosecond laser (Carl Zeiss Meditec, Jena, Germany)10,11. The plano-convex shaped stromal lenticule is extracted through a small incision to ...
also found that in the absence of lenticular astigmatism (LA), there was a difference between RA and the astigmatism measured by corneal topography [11]. This was ascribed to the contribution of the irregular astigmatism component i.e., the asymmetry of topographic hemi-meridians. During ...
In preschool children, the lens does not vary in response to high amounts of corneal WTR astigmatism, and in fact, it increases the oblique astigmatism component when the corneal component is high. In high astigmats, lenticular astigmatism contributes to both J0 and J45 components, whereas the ...
EXTREME ASTIGMATISM DUE TO UNUSUAL CORNEAL AND LENTICULAR ABNORMALITIES: A CASE REPORT AND DISCUSSIONAn abstract is unavailable. This article is available as a PDF only.doi:10.1097/00006324-199412001-00360Moore, Bruce DLaudon, RichardOptometry and Vision Science...
predicted corneal curvature and Seidel aberrations after 2 modalities of femtosecond assisted corneal lenticule extraction laser for the correction of myopia and myopic astigmatism: The flapless procedure small incision lenticular extraction (SMILE) and the flap-based femtosecond lenticular extraction (FLEx)...
Thus the risk of suture-related complications including induced astigmatism and delayed epithelialization are minimized. Here we compare the standard anterior lamellar keratoplasty (ALK) technique of implantation and suturing to a new intrastromal method, using a hybrid LASIK-type flap-based surgical ...