Measurement of Aniseikonia Tolerance in Binocular Fusion.

Significance: The determination of aniseikonia tolerance may aid in developing optimal treatment plans for cataract surgery, refractive surgery, and refractive correction with glasses and contact lenses.

Purpose: This study aimed to measure aniseikonia tolerance.

Methods: We included 33 patients (mean age ± standard deviation, 28.

Evaluation of ocular biometry in the Japanese population using a multicenter approach: Prospective observational study.

This prospective observational study aimed to evaluate the ocular biometry of Japanese people through a multicenter approach. The uncorrected and corrected distance visual acuity (UDVA and CDVA, respectively) in the log minimum angle of resolution (logMAR), subjective and objective spherical equivalent values (SE) of ocular refraction, anterior and posterior corneal curvature (ACC and PCC, respectively), anterior and posterior corneal asphericity (ACA and PCA, respectively), central corneal thickness (CCT), anterior chamber depth (ACD), and ocular axial length (AL) were measured in the eyes of 250 participants (mean age = 46.5 ± 18.

Prediction of distance visual acuity in presbyopic astigmatic subjects.

This study was aimed to determine the effect of the amount of astigmatism on distance visual acuity, and to provide a prediction formula of visual acuity according to astigmatism, in a presbyopic population. We comprised 318 eyes of 318 consecutive patients (158 phakic and 160 pseudophakic subjects) without any eye diseases, except for refractive errors with astigmatism of 3 diopter or less. We assessed the relationship of the spherical equivalent visual acuity (SEVA) with astigmatism, and also provided a regression formula of visual acuity according to astigmatism in such subjects.

Comparison of Conventional Keratometry and Total Keratometry in Normal Eyes.

Purpose: The relationship between conventional keratometry and total keratometry has not been fully investigated. This study was aimed at conventional keratometry measured with the automated keratometer and total keratometry with the corneal tomographer in ophthalmologically normal subjects.

Methods: We enrolled fifty eyes of 50 consecutive subjects (mean age ± standard deviation, 34.

Cataract surgery in a patient with an angle gamma due to macular heterotopia.

Purpose: We report a case of cataract surgery in a patient with a detectable angle gamma due to macular heterotopia.

Observation: A 48-year-old man had angle gamma due to macular heterotopia secondary to retinopathy of prematurity. The preoperative corrected distance visual acuity was 20/32 in the right eye and 20/200 in the left eye.

Association Between Ocular Dominance and Anisometropic Hyperopia.

Introduction And Purpose: Anisometropia, a relative difference in the refractive state of the two eyes, is common in hyperopic patients. We investigated the association between ocular dominance (sighting dominance) and refractive asymmetry in patients with hyperopia.

Methods: This retrospective study included 223 hyperopic patients with a mean age of 10.

Five-year follow-up of ocular deviation in bilaterally pseudophakic patients.

Purpose: To investigate long-term ocular deviation in patients who had undergone implantation of a monofocal intraocular lens (IOL) in both eyes.

Methods: Eighty-eight patients with exophoria (average age, 68 ± 8 years; average axial length, 23.9 ± 0.