Scientific Program

Conference Series Ltd invites all the participants across the globe to attend World Congress and Expo on Optometry and Vision Science
(10 Plenary Forums - 1Event) Chicago,USA.

Day 2 :

OMICS International World Optometry 2017 International Conference Keynote Speaker Chiristine Allision photo
Biography:

Christine Allison is a Fellow of the American Academy of Optometry, a Fellow of the College of Optometrists in Vision Development (COVD), and an American Academy of Optometry Diplomate in Binocular Vision, Perception and Pediatric Optometry, and a Distinguished Scholar and Fellow in the National Academies of Practice. She is the Clinical Director for the Illinois Special Olympics Lions Club International Opening Eyes Program, as well as a Regional Clinical Advisor for this program. She is the President-elect for COVD as well as the Illinois Optometric Association. She has published numerous articles, and given many presentations and lectures both nationally and internationally.

Abstract:

Purpose: The purpose of this longitudinal study was to analyze eye movement data related to birth order in a group of children upon entering Kindergarten, and then again upon entering 3rd grade. We have previously reported on a significant difference in eye movements among the pre-Kindergarten groups of children with no siblings, first born with siblings, and children who are not first born and have siblings. The findings have led to the theory that first born children and children with no siblings may exhibit better saccades and fixation control prior to entering Kindergarten due to differences in the type of activities they pursue. Once children are in school, their activities are more regulated, thus we theorized that the same children prior to entering 3rd grade would not show a significant difference in eye movements.

 

Methods: 112 children with similar academic/socioeconomic backgrounds were examined in the summer prior to Kindergarten. 33 of the same children have been examined again upon entering 3rd grade. The children were given comprehensive exams including tests of accommodation and vergence. The children also received eye-movement analysis with the Visagraph protocol. The caregivers completed a survey regarding the number/ages of siblings, prior school history, and amount of time spent on tasks like reading, using computers, and playing outdoors.

 

Results: Children in the pre-Kindergarten group who were first born exhibited better fixation control with fewer off-target drifts (F 6.09, p≤0.05) and more efficient horizontal saccades (F 5.96, p<0.05). The Bland-Altman analysis of the 3rd grade group indicated good agreement among all groups for saccadic accuracy, saccadic speed, fluency, and fixation accuracy.

 

Conclusions: The activities that first born children are encouraged to perform regularly prior to Kindergarten may lead to better eye movement skills at that age. However, by 3rd grade, a child is using eye-movements to learn, and uses visual tracking, saccadic sequencing and reading fluency to read at a higher level. Our data suggests that the first born group continues to have moderately improved eye-movement performance compared with the others, but not significantly better. The children in this study will be re-evaluated prior to 6th grade to determine if any new trends with eye movements or binocular stability develop.

Keynote Forum

Jose Luis Monroy

Keynote: Scleral lenses, Mexican experience

Time : 10:45-11:30

OMICS International World Optometry 2017 International Conference Keynote Speaker Jose Luis Monroy photo
Biography:

José Luis Monroy is an Optometrist and graduate of La Salle University in Colombia (1987). He is experienced in eye-care business and professional in Optical/Ophthalmologic and Optometry industry channels in Latin-America with 29 years of clinical, academic and business experience. He is actually a Senior Clinical Optometrist and Researcher at Unidad Oftalmológica del Valle in México City. He is the Commercial Director of Yolia Health and the Academic Director of the Institute of Continuing Education in Optometry in Mexico. He is the Professor of Graduate Contact Lens Fitting Post Refractive Surgery at Universidad Nacional Autonoma de México (UNAM). He is the President and Founder of the Latin-American Association of Contact Lens and Cornea.

Abstract:

Statement of the Problem: Keratoconus is a progressive and idiopathic disease in which the cornea develops into an irregular and conic shape. The clinical signs include thinning of the cornea in its central or paracentral region, an apical protrusion that results an irregular astigmatism, and this condition can progress. Keratoconus is the most common form of dystrophy or corneal ectasia, with an incidence of 50–230 per 100,000 persons. In Mexico, the research on keratoconus is scarce; the articles published show statistics that are similar to those in international literature, which indicates a higher prevalence in male patients with a mean age of 24.5 years. The incidence is about 1/2000 people in the general population in Mexico. Medical management with scleral lenses is a viable treatment for vision rehabilitation.
 
Methodology & Theoretical Orientation: Retrospective, cross-sectional, observational, descriptive study of 66 patients with diagnosis of keratoconus and other secondary ectasias post refractive surgery was done; and for those who were followed from 2014, we are fitting them with scleral contact lenses.
 
Findings: We have found two particular situations in patients fitted with scleral lenses in Mexico: in 80% of cases a significant impingement occurs in the scleral area with lens diameter of 15.8 mm and above, and due to this, peripheral areas need proper for better alignment of the edge with the sclera or smaller diameters. The other situation is that in 34% of cases the adjustments to the front surface due to the presence of residual astigmatism resolving this situation with toric designs have been made. 
 
Conclusion & Significance: Scleral lenses provide excellent vision correction and superior comfort compared to traditional contact lens options for the management of keratoconus and other ectasias post refractive surgery. In most of cases scleral lenses provide a really visual rehabilitation. Scleral lens should be considered before surgical intervention. However, lens designs should be improved especially in the landing zone.