000152112 001__ 152112
000152112 005__ 20250326144156.0
000152112 0247_ $$2doi$$a10.1016/j.optom.2025.100543
000152112 0248_ $$2sideral$$a143401
000152112 037__ $$aART-2025-143401
000152112 041__ $$aeng
000152112 100__ $$aGargallo, Diana$$uUniversidad de Zaragoza
000152112 245__ $$aA retinal simulation study on the influence of spherical aberration, astigmatism and optotype on the Jackson cross cylinder test
000152112 260__ $$c2025
000152112 5060_ $$aAccess copy available to the general public$$fUnrestricted
000152112 5203_ $$aPurpose
To study how spherical High-Order Aberration (HOA), astigmatism levels (-0.75 D and -1.25 D), and optotype type (dot pattern vs. letter row) influence patients’ responses in identifying the cylinder axis orientation with the Jackson Cross Cylinder Technique (JCCT).
Methods
Numerical simulations of retinal images corresponding to JCCT procedures were conducted and evaluated by 40 subjects. In order to do this, synthetic aberrometric profiles with and without HOAs (4th-order and 6th-order spherical aberrations) and two different astigmatism levels were generated from different Jackson Cross Cylinder axis positions and flips. The variable under study was the percentage of correct responses (hits) during each flip of the cross-cylinder lens. Statistical significance was assessed through confidence intervals overlapping evaluation.
Results
To achieve 90 % accuracy, the JCCT should begin by deviating >7.5° from the subject's astigmatism axis without spherical HOA and by >15° with them. The magnitude of astigmatism had minor relevance. The dot pattern was more accurate than the letters without HOAs; however, 72.5 % of observers considered that letter optotypes simplify the blur discrimination task.
Conclusions
According to our simulation experiment for astigmatic axis selection with JCCT, the presence of spherical HOAs significantly impacts the accuracy of patient responses. The type of optotype and the magnitude of astigmatism did not exhibit a clear relationship with accuracy, except in the case of the dot pattern optotype in the absence of HOAs. Under these conditions, the dot pattern achieved the highest rate of accurate responses.
000152112 536__ $$9info:eu-repo/grantAgreement/ES/DGA-FEDER/E44-23R$$9info:eu-repo/grantAgreement/ES/MICIU/PID2020-114311RA-I00
000152112 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000152112 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000152112 700__ $$aGarcía, Esther
000152112 700__ $$0(orcid)0000-0002-6576-3530$$aPerches, Sara$$uUniversidad de Zaragoza
000152112 700__ $$0(orcid)0000-0002-3979-4528$$aRemón, Laura$$uUniversidad de Zaragoza
000152112 700__ $$0(orcid)0000-0002-1124-0363$$aAres, Jorge$$uUniversidad de Zaragoza
000152112 7102_ $$12002$$2647$$aUniversidad de Zaragoza$$bDpto. Física Aplicada$$cÁrea Óptica
000152112 773__ $$g18, 2 (2025), 100543$$pJ. optom.$$tJournal of Optometry$$x1888-4296
000152112 8564_ $$s2163519$$uhttps://zaguan.unizar.es/record/152112/files/texto_completo.pdf$$yVersión publicada
000152112 8564_ $$s2016257$$uhttps://zaguan.unizar.es/record/152112/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000152112 909CO $$ooai:zaguan.unizar.es:152112$$particulos$$pdriver
000152112 951__ $$a2025-03-26-13:55:23
000152112 980__ $$aARTICLE