John D. Twelker

John D. Twelker

Pediatrics | Optometry
707 North Alvernon Way
Suite 301
Tucson, AZ 85711

Last Updated: 09/26/2026

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Found 26 publications

Axial length as a function of age, sex, and ethnicity: Results from the CLEERE study.

Axial length as a function of age, sex, and ethnicity: Results from the CLEERE study.

Journal: Optometry and vision science : official publication of the American Academy of Optometry
Published: October 23, 2025

Vision and developmental delay in toddlers.

Vision and developmental delay in toddlers.

Journal: Journal of AAPOS : the official publication of the American Association for Pediatric Ophthalmology and Strabismus
Published: February 15, 2025

Agreement between the Spot Vision Screener and cycloplegic retinoscopy for toddlers with astigmatism.

Agreement between the Spot Vision Screener and cycloplegic retinoscopy for toddlers with astigmatism.

Journal: Journal of AAPOS : the official publication of the American Association for Pediatric Ophthalmology and Strabismus
Published: December 11, 2024

Predicting the onset of myopia in children by age, sex, and ethnicity: Results from the CLEERE Study.

Predicting the onset of myopia in children by age, sex, and ethnicity: Results from the CLEERE Study.

Journal: Optometry and vision science : official publication of the American Academy of Optometry
Published: April 29, 2024

Myopia Progression as a Function of Sex, Age, and Ethnicity.

Myopia Progression as a Function of Sex, Age, and Ethnicity.

Journal: Investigative ophthalmology & visual science
Published: August 31, 2021

Uncorrected Refractive Error and Distance Visual Acuity in Children Aged 6 to 14 Years.

Uncorrected Refractive Error and Distance Visual Acuity in Children Aged 6 to 14 Years.

Journal: Optometry and vision science : official publication of the American Academy of Optometry
Published: January 04, 2021

Interventions to slow progression of myopia in children.

Interventions to slow progression of myopia in children.

Journal: The Cochrane database of systematic reviews
Published: January 14, 2020

Spectacle Wear in Toddlers: Frequency of Wear and Impact of Treatment on the Child and Family.

Spectacle Wear in Toddlers: Frequency of Wear and Impact of Treatment on the Child and Family.

Journal: Translational vision science & technology
Published: June 12, 2018

A preliminary study of astigmatism and early childhood development.

A preliminary study of astigmatism and early childhood development.

Journal: Journal of AAPOS : the official publication of the American Association for Pediatric Ophthalmology and Strabismus
Published: November 10, 2017

Interrater and Test-Retest Reliability of the Beery Visual-Motor Integration in Schoolchildren.

Interrater and Test-Retest Reliability of the Beery Visual-Motor Integration in Schoolchildren.

Journal: Optometry and vision science : official publication of the American Academy of Optometry
Published: April 20, 2017

The Response AC/A Ratio Before and After the Onset of Myopia.

The Response AC/A Ratio Before and After the Onset of Myopia.

Journal: Investigative ophthalmology & visual science
Published: March 15, 2017

Visual Motor and Perceptual Task Performance in Astigmatic Students.

Visual Motor and Perceptual Task Performance in Astigmatic Students.

Journal: Journal of ophthalmology
Published: August 08, 2016
Showing 1-12 of 26

Last Updated: 09/26/2026