Investigation of optical characteristics of rigid protected and traditional elastic Fresnel microprisms using electronic method for measuring visual acuity. (November 2018)

• Record Type: Journal Article
• Authors: Petrov, Viacheslav; Antonov, Eugene; Fu, Minglei; Hu, Weijie; Kryuchyn, Andriy; Manko, Dmytro; Le, Zichun; Shanoilo, Semen
• Is Part Of: Optics & laser technology. Volume 107(2018)
• Page Start: 15
• Page End: 23
• Publication Date: 2018-11
• Subjects: Rigid Fresnel prisms -- Microprisms -- Visual acuity; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2018.05.011
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: New rigid protected Fresnel prisms for strabismus diagnostics were developed. A method for determining resolution of images through microprisms was proposed. An experimental setup allowing the measurement of visual acuity was developed. Reasons for the decrease of image resolution and vision acuity were discussed. Abstract: A method for determining resolution of images through prisms using test patterns is proposed. This technique is more precise than the traditional method for measuring visual acuity, which involve ophthalmologic test charts and questioning patients. An experimental setup allowing the measurement of image resolution was developed. Comparative characteristics were obtained for "Gulden Ophthalmics" (USA) monoprisms, for "3M™Press-On™" (USA) elastic films with microrelief and for new rigid protected Fresnel microprisms developed at the Institute for Information Recording (Ukraine). The reasons for the decrease in image resolution and visual acuity are discussed for all of the investigated ophthalmic monoprisms and microprisms.