98%
921
2 minutes
20
We describe a wink-controlled hands-free switching system for eye-borne telescopic vision, based on a previously tested fixed-magnification telescope embedded within scleral contact lenses. Here we integrate orthogonal polarizers into the contact lens covering the F/9.1 refractive 1× and F/9.6 catadioptric 2.8× vision paths, to allow switching via external liquid crystal shutters. We provide hands-free control by an infrared wink/blink monitor, using passive retroreflectors embedded within the contact lenses. We demonstrate system operation of the self-contained switching eyewear and the modified contact lenses with a life-size human eye model with mechanical "eyelids."
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1364/AO.54.009597 | DOI Listing |
Clin Ophthalmol
August 2025
Centre for Ocular Research & Education (CORE), School of Optometry & Vision Science, University of Waterloo, Waterloo, ON, Canada.
Purpose: To evaluate the effectiveness of lifitegrast ophthalmic solution 5% in alleviating end-of-day dryness and discomfort in symptomatic contact lens (CL) wearers.
Patients And Methods: This was an open-label study in symptomatic CL wearers with ratings of ≥40 for end-of-day dryness on a visual analog scale (VAS; 0-100 scale; 100 worst). Participants wore their habitual CLs and instilled lifitegrast twice daily for 12 weeks with lenses removed.
Clin Ophthalmol
August 2025
Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, BC, Canada.
Purpose: This study aims to evaluate rotational stability and patient-reported outcomes associated with Tecnis Eyhance toric II "monofocal plus" intraocular lens (IOL), particularly in light of a modified haptic design.
Methods: A prospective, interventional study was conducted with patients undergoing routine cataract surgery and Tecnis Eyhance toric II IOL implantation. The inclusion criteria were topographic corneal astigmatism of 0.
BMC Ophthalmol
September 2025
Optometry Center, Shaanxi Key Laboratory of Ophthalmology, Xi'an No.1 Hospital (the First Affiliated Hospital of Northwest University), Shaanxi Institute of Ophthalmology, No.30, Fenxiang Alley, South Street, Xi'an, Shaanxi Province, 710002, China.
Purpose: To determine the baseline ocular biometrics in children with axial length reduction after orthokeratology for better myopia control.
Methods: Changes in ocular parameters in 164 subjects who completed one year of Ortho-K treatment were retrospectively reviewed. The subjects were divided into AL reduction (n = 105, ≤ 0 mm/year axial growth) and AL elongation (n = 59, ≥ 0.
J Optom
June 2025
School of Acupuncture-Moxibustion and Tuina, Beijing University of Chinese Medicine, Beijing, China. Electronic address:
Introduction: This review aims to analyse the application of the measure methods and measure contents of the outcomes reported in studies on slowing myopia, and the associations between outcomes and study characteristics.
Methods: Publications were identified by a search of seven electronic databases including China National Knowledge Infrastructure, China Biology Medicine, Wanfang database, CQVIP database, PubMed, Cochrane Library and Excerpta Medica Database, for relevant terms like myopia and randomized controlled trial from construction to Sept. 15th, 2023.
J Craniofac Surg
September 2025
Department of Plastic and Cosmetic Surgery, The Affiliated Friendship Plastic Surgery Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
Objective: The aim of this study was to observe and analyze the histologic characteristics and changes of the upper eyelid regarding blepharoptosis induced by wearing contact lens.
Methods: The levator aponeurosis-Müller's muscle complex specimens from 12 people who wear contact lenses were stained with hematoxylin-eosinand, Masson trichrome and antismooth muscle actin antibodies, and then were observed under light microscopy. The upper eyelids from 6 cadaver specimens were used as controls, and were examined with the same histologic techniques.