Peripheral overall blur influenced by defocus and oblique astigmatism

Article

Peripheral overall blur is largely influenced by a combination of defocus and oblique astigmatism.

Peripheral overall blur is largely influenced by a combination of defocus and oblique astigmatism, states an investigation in Investigative Ophthalmology and Visual Science.

Dr B. Jaeken et al., Laboratorio de Óptica, Universidad de Murcia, Campus de Espinardo, Murcia, Spain, measured the optical image quality of 202 eyes of 101 subjects with different central refractions.

The relationship between peripheral optics and central refraction was evaluated using various metrics. Average foveal refraction was -0.8, with 64 non-myopes and 37 myopes.

The findings demonstrated that the relative peripheral refraction was significantly different when comparing the emmetropic and myopic eyes from 15° temporal retina and from 20° nasal retina.

The mean relative peripheral refraction metric was linked to the central refraction of the subject. Image quality was similar for a number of refractive groups at angles of 30-40°.

The study could indicate an argument against the previous hypothesis that a relative peripheral hyperopa could cause myopia.

Recent Videos
Dr Rick Lewis discusses the FLigHT procedure and ViaLase laser at the 2024 European Society of Cataract and Refractive Surgeons (ESCRS) meeting
Christiana Dinah speaks about her ASRS presentation, Real-World Treatment Outcomes With Anti-VEGF Therapy in Patients With Retinal Vein Occlusion in the UK
Chase Ludwig, MD, shared an overview of his presentation, which covered real-impact of vitrectomy surgery on the progression of AMD at the annual ASRS meeting in Stockholm, Sweden
Patrick C. Staropoli, MD, discusses clinical characterisation of Hexokinase 1 (HK1) mutations causing autosomal dominant pericentral retinitis pigmentosa
Richard B. Rosen, MD, discusses his ASRS presentation on illuminating subclinical sickle cell activities using dynamic OCT angiography
ASRS 2024: Socioeconomic barriers and visual outcomes in patients with rhegmatogenous retinal detachments, from Sally S. Ong, MD
Ashkan Abbey, MD, speaks about his presentation on the the CALM registry study, the 36-month outcomes of real world patients receiving fluocinolone acetonide 0.18 mg at the annual ASRS meeting in Stockholm, Sweden.
Nikoloz Labauri, MD, FVRS, speaks at the 2024 ASRS meeting about suspensory macular buckling as a novel technique for addressing myopic traction maculopathy
Jordana Fein, MD, MS, speaks with Modern Retina about the IOP outcomes with aflibercept 8 mg and 2 mg in patients with DME through week 48 of the phase 2/3 PHOTON trial at the annual ASRS meeting in Stockholm, Sweden.
© 2024 MJH Life Sciences

All rights reserved.