Amplify EyeCare Manhattan Logo
Authors
Logan, Anna-Kaye M. OD, FAAO1; Datta, Ananya BOptom, MPhil, PhD; Skidmore, Kelsea OD, MS, FAAO; Tomiyama, Erin S. OD, MS, FAAO; Hu, Chuan MD, OD; Chandler, Moriah A. OD, FAAO; Procopio, Bryan BS; Bhadane, Minal PhD; Benoit, Julia S. PhD; Ritchey, Eric R. OD, PhD, FAAO; Wolffsohn, James S. BScOptom, MBA, PhD, FAAO; Richdale, Kathryn OD, PhD, FAAO

Randomized Clinical Trial of Near Visual Performance with Digital Devices Using Spherical and Toric Contact Lenses

publication date
Category
see more

Abstract/Introduction

SIGNIFICANCE 

Visual demands today incorporate a significant amount of time using digital devices. Results of this randomized crossover study of spherical and toric contact lenses demonstrated that participants were able to read smaller print size more comfortably and preferred toric contact lenses when using digital devices.

 

PURPOSE 

The purpose of this study was to assess how toric contact lens correction affects subjective and objective outcomes of astigmatic patients using real-world digital devices.

 

METHODS 

Adult participants, aged between 20 and 38 years with −0.75 to −1.50 D of astigmatism were enrolled in this double-masked randomized crossover 10-day study of Alcon Dailies Aqua Comfort Plus Sphere and Toric (Alcon, Geneva, Switzerland) contact lenses. Electronic high- and low-contrast near logMAR visual acuity and contrast sensitivity were tested. Reading performance was assessed using custom iPad applications; one used a reading sentences test, whereas the other analyzed zoom, contrast, and distance with website-based articles. Participants completed the Near Activity Visual Questionnaire and stated their preferred contact lens correction.


Conclusion/Results

RESULTS 

Thirty seven participants were screened, 35 participants were enrolled, and 34 participants completed the study. Toric lens correction improved near high- and low-contrast visual acuity by 0.5 to 1 full line (P < .0001) and allowed participants to read one line smaller text on the iPad (P = .01). Participants increased the zoom 11% (P = .004) and the contrast 4% (P = .006) more with spherical lenses while reading articles. Participants held the iPad at approximately the same distance, about 33 cm (P = .63). Eighty five percent of participants preferred the toric correction (P < .0001). Participants reported

improved satisfaction with toric lens correction (P = .0002) and noticed the most benefit with tasks such as reading small print and labels/instructions.

 

CONCLUSIONS 

This study used digital devices to demonstrate realistic benefits of toric contact lens designs for astigmatic patients..


Testimonials


  • At Amplify with Dr Wernick I was seeking help for seemingly intractable, probably age-related dryness. I've seen other doctors about it, and that has been helpful, but what he explained to me about it and the careful way he answered all my questions gave me so much more of a clear understanding of what is going on (and is not) that I am more able to implement all his and others' recommendations than I was before. And he gave me additional resources for further follow-up. I am most grateful.


    Cynthia Norton

  • Wow! This is a great Eye Care medical facility. I was thoroughly examined by Dr. Pinkhasov for over 2 hours. She made sure to check my eyes for pretty much everything and patiently explained proper care for my eyes. They definitely know how to provide great care and treat their patients right. Now I know why they have such a great reputation and been around for so long.


    Steve Fay

  • Dr. Kavner is a gifted diagnostician and orthoptic therapist. He treated me several decades ago for a condition similar to dyslexia. I was having migraines five times per week. I worked with him for about a year and I experienced tremendous improvement (down to 3-4 per year) that has lasted.


    Mary K.

  • Dr. Kavner recommended two types of eye therapy for my daughter. One of them using bio-feedback. In just three sessions she is seeing considerably better. She shouted this morning: Ooh my God! I could not see these letters with my glasses on, and now I can see them without my glasses. If you are willing and able to invest in improving your vision, this is a good place to go to!


    Peter G.

  • Dr. Kavner recommended two types of eye therapy for my daughter. One of them using bio-feedback. In just three sessions she is seeing considerably better. She shouted this morning: Ooh my God! I could not see these letters with my glasses on, and now I can see them without my glasses. If you are willing and able to invest in improving your vision, this is a good place to go to!


    Kinkie F.

Blog

smart-contact-lens-fingertip-new-tech

Contacts for Keratoconus

Contact lenses can be used for improving your vision and comfort if you have keratoconus. But before we get into […]

Read More
eye-problems-such-as-near-sighted

Why are your eyes tired, dry, or vision blurry after hours on a phone or computer? Understanding the impact of digital screen time on how we blink

Digital devices affect our blinking rate and can lead to digital eye strain. In the United States, nearly 70 percent […]

Read More
jack-b-oWUeGozstgs-unsplash

Keratoconus

Keratoconus occurs in approximately one in 2,000 individuals and affects people of all races equally. What is keratoconus? It is […]

Read More
see all blogs

Contact Us To Amplify Your EyeCare

Working Hours

Monday - Thursday
8:00 am - 5:15pm
friday-sunday
Closed
Location
235 East 67th Street, Suite 201, New York, New York, United States, 10065
Website Accessibility Policy
Safety protocols page
phone-handsetarrow-uparrow-right linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram