Images Digitization and Characterization of Surface and Fundus obtained through a Slit Lamp Adapted

Abstract

Abstract-Slit Lamp (SL) is the equipment commonly used in most eye clinics. This instrument allows to observe ocular structures of both the anterior segment and posterior segment with different magnification values. Currently is very common obtain images from SL with a Smartphone (for documentation purposes) by means of a simple adapter in the eyepiece. These images lose their diagnostic quality due to the information lose to correct the lack correction of optical aberrations and noise introduced by this system. This paper analyzes the hardware settings and image characterization to need diagnostic quality image in SL. For this purpose a universal adapter for SLR cameras were developed. To adquisition process image the camera software capture were use. They were captured 128 images: 73 of anterior segment, 25 fundus and the rest with a magnifying glass and panfunduscope. These images were characterized by type and noise power.

Design of a High-Performance Digital Slit-Lamp Microscope with Five-Switched Zoom

“…The main design of a conventional SLM does not include an image acquisition module. The digital image is obtained from the SLM using a camera or smartphone by means of an adapter in the eyepiece [11][12][13][14]. C. Yen et al reported a method of image acquisition from a smartphone with an SLM via a simple adapter in the eyepiece [13].…”