8th International Conference & Expo on Euro Optometry and Vision Science
Rome, Italy
Moataz Elhelaly
Higher Institute of Optics Technology, Egypt
Title: Contact lenses in advanced solutions for management of irregular corneal profile
Biography
Biography: Moataz Elhelaly
Abstract
Contact lenses for irregular corneal is one of development method for management most of corneal disorders due to the corneal shape.
They have been summarized into 4 types:
1. Soft customized lenses
2. RGP corneal lenses
3. Hybrid RGP/soft
Soft Customized from its name we are customizing the lens basing on Base Curve–Diameter–material–over refraction basing on slit lamp examination with trial set and assessing the movement–rotation–centration–conformability-Visual acuity.
RGP the oldest design and here we letting the PMMA material to play a role of correcting the corneal shape by a little feather touch and its diameter range between 8-11 mm and its landing on the cornea.
Hybrid lenses the RGP from center and peripheral is soft skirt landing on the scleral and between the corneal and RGP part is a tear lens or space filled up with solution for neutralizing the irregularity and correcting the residual astigmatism.
Scleral lenses RGP lenses that landing on the scleral and it’s one of the best solution with dryness and it’s same as hybrid lenses depending on tear lens or the space between cornea and lens filled up with saline and it’s easier in removing and wearing.
Presentation ends with success and unique stories for different types of lenses and advanced case of keratoglobus–keratoconus–PMD–Post lasik Ectasia–post graft.