Purpose: To evaluate the treatment efficacy of the preoperative base-out recovery point as the surgical target angle for acute acquired comitant esotropia.
Methods: Prospective study. Twenty-two patients with acute acquired comitant esotropia (AACE) underwent strabismus surgery based on the target angle of the preoperative base-out recovery point. The postoperative deviation, positive fusional vergence, and negative fusional vergence were evaluated and compared with those of 23 normal individuals.
Results: The mean follow-up period was 18.68 ± 19.48 months. At the last follow-up, 19 (86.4%) of 22 subjects had orthophoria, whereas 3 (13.6%) had minimal esophoria. The postoperative angle of deviation was significantly smaller than the preoperative angle of deviation at near (P < 0.001) and distance (P < 0.001). Postoperative sensory fusion was significantly better than preoperative fusion at near (P < 0.001) and distance (P < 0.001). The postoperative stereoacuity improved significantly after the surgery at near (P < 0.001) and distance (P < 0.001). Compared with the controls, the convergence and divergence amplitudes in the AACE patients were similar at distance (P > 0.05) but were still narrower at near (P < 0.001).
Conclusion: Good alignment and binocular balance were obtained with the surgical target angle of the base-out recovery point in AACE.
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http://dx.doi.org/10.1007/s00417-021-05318-6 | DOI Listing |
Life (Basel)
September 2024
Departament d'Òptica i Optometria (DOO), Universitat Politècnica de Catalunya (UPC), Campus de Terrassa, Edifici TR8, C.Violinista Vellsolà, 37, 08222 Terrassa, Spain.
Fusional vergence range tests are commonly used in optometric practice. The aim of this study was to investigate the possible contribution of CA/C, AC/A, and proximal cues (PCT) to the magnitude and presence of blur and recovery during the measurement of fusional vergence ranges and to determine whether the occurrence of blur is influenced by these vergence and accommodation cues. A total of 27 participants with normal binocular vision were included and AC/A, CA/C, and PCT ratios were evaluated.
View Article and Find Full Text PDFPLoS One
May 2023
Centre for Sensors, Instruments, and Systems Development (CD6), Universitat Politècnica de Catalunya (UPC), Terrassa, Spain.
Two tests to measure fusional vergence amplitudes objectively were developed and validated against the two conventional clinical tests. Forty-nine adults participated in the study. Participants' negative (BI, base in) and positive (BO, base out) fusional vergence amplitudes at near were measured objectively in an haploscopic set-up by recording eye movements with an EyeLink 1000 Plus (SR Research).
View Article and Find Full Text PDFOptom Vis Sci
January 2022
Translational Ophthalmology Research Center, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran.
Significance: The effect of vergence adaptation on test sequences should be considered in clinical practice.
Purpose: This study aimed to compare the effect of vergence adaptation after different vergence facility (VF) testing methods on following horizontal fusional reserve measurement at near.
Methods: This cross-sectional study was performed on 50 healthy subjects with a mean ± standard deviation age of 21.
Graefes Arch Clin Exp Ophthalmol
December 2021
The Eye Hospital of Wenzhou Medical University, No. 270, West Xueyuan Rd., Wenzhou, 325027, Zhejiang, China.
Purpose: To evaluate the treatment efficacy of the preoperative base-out recovery point as the surgical target angle for acute acquired comitant esotropia.
Methods: Prospective study. Twenty-two patients with acute acquired comitant esotropia (AACE) underwent strabismus surgery based on the target angle of the preoperative base-out recovery point.
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