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Background: Current research in the realm of teleoptometric examinations is largely focused on the refractive and ocular health components of the exam. The purpose of this study was to evaluate the validity of binocular vision and accommodative testing in a tele-optometric examination compared to an in-person examination. Methods: Thirty students, ≥18 years old, at the Illinois College of Optometry were recruited to participate in this study. A teleoptometric examination was completed using the DigitalOptometrics platform, followed by a standard in-person examination. The following tests were performed in both examinations: near horizontal heterophoria by von Graefe, near negative and positive fusional vergences (NFV and PFV, respectively) by Risley prism, and accommodative testing with fused cross-cylinder (FCC). Results: The mean near horizontal heterophoria by von Graefe was 2.09Δ ± 6.73∆ exophoria in the tele-optometric examinations and 2.07Δ ± 6.54∆ exophoria in the in-person examinations, with no statistically significant difference between the two examinations (p=0.98). The mean NFV break and recovery in the tele-optometric examination were 10.85∆ ± 3.17∆ and 7.08∆ ± 3.03∆, respectively, and 23.40∆ ± 7.71∆ and 15.38∆ ±7.31∆, respectively, in the in-person examination, with a statistically significant difference (for both, p<0.0001). The mean PFV break and recovery in the tele-optometric examination were 13.50Δ ± 4.24Δ and 9.36Δ ± 4.68Δ, respectively, and 25.86Δ ± 10.48Δ and 16.54Δ ± 7.18Δ, respectively, in the inperson examination, with a statistically significant difference (break: p=0.001, recovery: p=0.004). Agreement of NFV and PFV between the two examinations was poor. The average FCC in the tele-optometric versus in-person examination was +0.67 D ± 0.51 D and +0.96 D ± 0.33 D, respectively, with a statistically significant difference between the two examinations (p=0.012). Conclusions: The tele-optometric and inperson examinations had fair agreement on near heterophoria but poor agreement on break and recovery values of NFV and PFV. Accommodative testing with FCC was not equivalent between the two exams. [ABSTRACT FROM AUTHOR]

Purpose: To report the ocular features of patients with PD who presented with visual complaints to a tertiary eye care center.Methods: This was a retrospective study carried out between January 2015 and March 2020 at the Neuro-Optometry clinic of a tertiary eye care center in Southern India. All PD patients with ocular complaints examined by the neuro- ophthalmologists were referred to Neuro-Optometry Clinic for detailed evaluation. Patients with other neurodegenerative disorders, brain injury, and other causes of vision loss or extraocular motility disorders were excluded.Results: A total of 43 patients (7 females, 36 males) between 50 and 86 years of age (mean: 70 ± 8.9 years) with a mean duration of PD of 4.5 ± 4.5 years were studied. Decreased vision associated with reading difficulty (40%) was common in PD patients. In terms of gaze restriction, vertical gaze involvement (35%) was more than horizontal involvement (7%). Convergence insufficiency (CI) was the most common binocular vision dysfunction (30%), followed by CI with oculomotor dysfunction (14%) and vertical gaze palsy (18%). Ground prisms were recommended for 26 patients (61%) and home vision therapy for 5 patients (12%) as corrective measures.Conclusion: Binocular vision dysfunction is highly prevalent among PD patients. This could potentially contribute to the reading difficulties and double vision encountered by these patients. Assessment of binocular vision and oculomotor parameters thus becomes important to understand and manage the reading difficulties in patients with PD. [ABSTRACT FROM AUTHOR]