![](/images/graphics-bg.png)
Repeatability of Aberrometry-Based Automated Subjective Refraction in Healthy and Keratoconus Subjects
Joint Authors
Batres, Laura
Carracedo, Gonzalo
Carpena-Torres, Carlos
Pastrana, Cristina
Privado-Aroco, Ana
Serramito, María
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-10-30
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Purpose.
To compare the intersession repeatability of the Eye Refract, a new instrument to perform aberrometry-based automated subjective refraction, on healthy and keratoconus subjects.
Materials and Methods.
A cross-sectional and randomized study was performed.
A total of 64 participants were evaluated in the study, selecting one eye per participant randomly.
The sample was divided into two different groups: 33 healthy subjects (38.85 ± 13.21 years) and 31 with keratoconus (37.29 ± 11.37 years).
Three refractions per participant with the Eye Refract were performed on three different days, without cycloplegia.
The repeatability analysis of refractive variables (M, J0, and J45), binocular corrected distance visual acuity (BCDVA), and spent time in refraction was performed in terms of repeatability (Sr), its 95% confidence interval (r), and intraclass correlation coefficient (ICC).
Results.
There were no statistically significant differences (P≥0.05) between sessions in both groups for all refractive variables (M, J0, and J45) and BCDVA.
Spent time in refraction was reduced as the sessions went by (P<0.05).
The Eye Refract was more repeatable for refractive errors assessment in healthy subjects (M : Sr = 0.27 D; J0 : Sr = 0.09 D; J45 : Sr = 0.06 D) compared to those with keratoconus (M : Sr = 0.65 D; J0 : Sr = 0.29 D; J45 : Sr = 0.24 D), while it was similar for BCDVA.
Conclusions.
The Eye Refract offered better repeatability to assess refractive errors in healthy subjects compared to those with keratoconus.
Despite measurements being also consistent in keratoconus subjects, they should be treated with caution in clinical practice.
American Psychological Association (APA)
Carracedo, Gonzalo& Carpena-Torres, Carlos& Pastrana, Cristina& Privado-Aroco, Ana& Serramito, María& Batres, Laura. 2020. Repeatability of Aberrometry-Based Automated Subjective Refraction in Healthy and Keratoconus Subjects. Journal of Ophthalmology،Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1189424
Modern Language Association (MLA)
Carracedo, Gonzalo…[et al.]. Repeatability of Aberrometry-Based Automated Subjective Refraction in Healthy and Keratoconus Subjects. Journal of Ophthalmology No. 2020 (2020), pp.1-7.
https://search.emarefa.net/detail/BIM-1189424
American Medical Association (AMA)
Carracedo, Gonzalo& Carpena-Torres, Carlos& Pastrana, Cristina& Privado-Aroco, Ana& Serramito, María& Batres, Laura. Repeatability of Aberrometry-Based Automated Subjective Refraction in Healthy and Keratoconus Subjects. Journal of Ophthalmology. 2020. Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1189424
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1189424