Stenopeaic Slit: A Diagnostic and Refractive Tool
Partha Haradhan Chowdhury *
Department of Optometry, Shree Satchandi Jankalyan Samiti Netra Prasikshan Sansthan, Pauri Affliated to Uttarakhand State Medical Faculty, Dehradun, India
Brinda Haren Shah
Department of Optometry, Gujarat University, Gujarat, India
*Author to whom correspondence should be addressed.
Abstract
This paper describes about the diagnostic and refractive procedures which were performed with the help of stenopaeic slit. The slit is used in performing refraction in cases of high astigmatism, low vision patients, keratoconus patients as well as in performing normal refraction. Slit is also useful in measuring vertex distance to place trial frame properly.
Keywords: Stenopaic slit, vertex distance, refraction