Purpose: The purpose of this study is to test the reliability of the grading system of standard fixation preference testing compared with the logarithmic scale of the minimum angle of resolution (logMAR) interocular visual acuity difference of patients with manifest strabismus and to test the strength of association between the interocular visual acuity difference and the grade of alternation.
Methods: A total of 111 strabismic patients with large angle heterotropias (> 10 PD) were included in this study. The visual acuities of these patients were determined using the Snellen's, tumbling E, or Lea visual acuity charts as appropriate for the child's age and ability to cooperate. The results were converted to their logarithmic equivalents of minimum angle of resolution or recognition. Fixation preference was graded from 0 to 4 and was evaluated by observing the time-period through which fixation was maintained with the nonpreferred eye.
Results: The median value of interocular visual acuity difference for grade 4 was determined as 0.0, grade 3 as 0.097, grade 2 as 0.17, grade 1 as 0.3, and grade 0 as 0.8. The grade of fixation preference was found to be inversely related to the logMAR interocular visual acuity difference (P <.0001). There was a significant difference between every fixation grade except grade 1 and grade 2 (P <.005).
Conclusions: The grades used in fixation preference testing correlate with the logMAR visual acuity differences in strabismic amblyopic patients. However, the grading system does not imply a linear function in terms of visual acuity difference. The difference between the logMAR values of patients with grade 0 and 1 are more profound compared with other grades.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1067/mpa.2002.122364 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Treatment with BRAF/MEK: inhibitors in mutant BRAF V600E papillary craniopharyngioma.
Endocr Oncol
January 2024
Department of Oncology, Department of Clinical Sciences, Lund University, Skåne University Hospital, Lund, Sweden.
Summary: Craniopharyngiomas (CPs) are rare brain epithelial tumours arising in the suprasellar region, infiltrating adjacent areas causing visual loss, panhypopituitarism, cognitive deficits and morbid obesity. Papillary CPs (PCPs) harbour in 94% BRAF mutation cases. Two patients with PCP and BRAF V600E mutations but with different tumour status were treated with BRAF and MEK inhibitors.
View Article and Find Full Text PDFMaintained transparency of preserved cornea after penetrating keratoplasty for fungal keratitis: A case report.
Am J Ophthalmol Case Rep
December 2024
Department of Ophthalmology, University of Tokyo Hospital, 7-3-1, Bunkyo-ku, Tokyo, Japan.
Purpose: This report presents a case of fungal keratitis treated with penetrating keratoplasty using a cryopreserved cornea, highlighting the successful maintenance of corneal transparency post infection resolution.
Observations: A 57-year-old man complaining of pain in the right eye was referred to our hospital. Although diagnosed with fungal keratitis, his corneal scraping indicated the presence of , and he was unresponsive to voriconazole, micafungin, and pimaricin treatments.
Visual training system 4: a promising adjuvant therapy for ocular accommodative function and visual acuity improvement in refractive amblyopia patients.
Am J Transl Res
December 2024
Department of Ophthalmology, Huizhou Third People's Hospital, Guangzhou Medical University Huizhou 516000, Guangdong, China.
Objective: To evaluate the therapeutic effects of Visual Training System 4 (VTS4) as an adjunctive therapy for patients with refractive amblyopia.
Method: A total of 82 patients with refractive amblyopia (142 eyes) treated at the Zhongshan Ophthalmic Center of Sun Yat-sen University, were enrolled and divided into two groups based on the treatment protocol. The control group included 40 patients (68 eyes) who received conventional comprehensive treatment, while the observation group was comprised of 42 patients (74 eyes) treated with VTS4 in addition to conventional therapy.
Changes in the effective optical zone following hyperopic keratorefractive lenticule extraction.
Ann Med
December 2025
Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Fudan University, Shanghai, China.
Objective: To evaluate the longitudinal changes in the effective optical zone (EOZ) following hyperopic keratorefractive lenticule extraction (KLEx) and investigate factors influencing the EOZ.
Patients And Methods: This retrospective study included 27 patients who underwent hyperopic KLEx. According to the transition zone (TZ) sizes, they were divided into two groups: group A (21 eyes) with a 2.
Hardy-Rand-Rittler colour vision testing in cone and cone-rod dystrophies: correlation with structural and functional outcome measures.
Eye (Lond)
January 2025
Save Sight Institute, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.
Purpose: To determine how Hardy-Rand-Rittler (HRR) colour vision testing correlates with visual functional and structural assessments in Cone and Cone-Rod Dystrophy.
Methods: Thirty-four Cone and 69 Cone-Rod Dystrophy patients diagnosed by electroretinography (ERG) at the Save Sight Institute in Sydney were included in a retrospective analysis. Each patient's HRR colour vision test scores were compared with markers of cone and rod system function including visual acuity (VA), ERG responses, changes on Spectral Domain Optical Coherence Tomography (OCT) and Fundus Autofluorescence.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!