Published Paper Details:

Aim and objective: The aim of this study is to find out corneal sensitivity difference among three types of contact lens wearer (RGP lens, hydrogel Contact lens and silicon hydrogel contact lens) and non-contact lens wearer who walks in tertiary eye care center. This study is conducted experiments in order to detect whether changes in sensitivity were also different for the different zones. Method: A prospective study was performed which include total 80 subjects were recruited in this study among them 20 subjects were non-contact lens users, 20 subjects were RGP wearer, 20 were soft hydrogel lens wearer and 20 were silicon hydrogel lens wearer presenting at Dr. D.Y. Patil Institute of Optometry and Visual Sciences, Pune, from October 2022 to February 2023. Corneal sensitivity is measured using fine wisp of cotton and data analysis was done based on distribution. Result: Using fine wisp of cotton time taken for response in the form of blinking is measured in seconds and found mean time, for non-contact lens wearer is 0.361, for silicone contact lens wearer is 0.415, for hyderogel contact lens wearer is 0.619 and for RGP contact lens wearer is 0.781. statistical analysis showed that all the experimental groups (non contact lens users, silicone hydrogel lens wearer, hydrogel contact lens wearer and RGP lens wearer) significantly differed in terms of corneal sensitivity from each other. Conclusion: The study can be concluded by saying both soft and RGP lens wear produce a similar type of corneal sensitivity loss, although the mechanism for this loss is different for the two lens types. The recovery of corneal sensitivity loss is achieved by cessation of contact lens.