Early detection of a refractive error and its correction are extremely important for the prevention of amblyopia (poor vision). The golden standard in the detection of refractive errors is retinoscopy--a method where the pupils are dilated in order to exclude accomodation. This results in a more accurate measurement of a refractive error. Automatic computer refractometer is also in use. The study included 30 patients, 15 boys, 15 girls aged 4-16. The first examination was conducted with refractometer on narrow pupils. Retinoscopy, followed by another examination with refractometer was performed on pupils dilated with mydriatic drops administered 3 times. The results obtained with three methods were compared. They indicate that in narrow pupils the autorefractometer revealed an increased diopter value in nearsightedness (myopia), the minus overcorrection, whereas findings obtained with retinoscopy and autorefractometer in mydriasis cycloplegia, were much more accurate. The results were statistically processed, which confirmed the differences between obtained measurements. These findings are consistent with the results of studies conducted by other authors. Automatic refractometry on narrow pupils has proven to be a method for detection of refractive errors in children. However, the exact value of the refractive error is obtained only in mydriasis--with retinoscopy or an automatic refractometer on dilated pupils.
Download full-text PDF |
Source |
---|
Sci Rep
December 2024
Department of Ophthalmology, Jinshan Hospital of Fudan University, 1508 Longhang Road, Jinshan District, Shanghai, China.
To observe the structural changes of retina and choroid in patients with different degrees of myopia. We recruited 219 subjects with different degrees of myopia for best corrected visual acuity, computer refraction, intraocular pressure, axial length (AL), optical coherence tomography (OCT) imaging, and other examinations. Central macular retinal thickness (CRT), subfoveal choroidal thickness (SFCT), nasal retinal thickness (NRT), temporal retinal thickness (TRT), nasal choroidal thickness (NCT) and temporal choroidal thickness (TCT) were measured by optical coherence tomography.
View Article and Find Full Text PDFOphthalmic Plast Reconstr Surg
December 2024
Hariram Motumal Nasta & Renu Hariram Nasta Ophthalmic Plastic Surgery Services, KAR Campus.
Purpose: To evaluate the growth, management, and outcomes of epibulbar dermolipomas over a 5-year follow-up period.
Methods: This was a retrospective chart review of epibulbar dermolipoma patients with a minimum follow-up of 5 years, which analyzed the changes in size, refractive errors (spherical equivalent), best-corrected visual acuity, histology, and surgical outcomes.
Results: A total of 61 eyes of 53 patients (32 females) with an average presenting age of 4.
Front Med (Lausanne)
December 2024
Research Unit Vision, Visual Impairments and Blindness, Department of Rehabilitation Sciences, TU Dortmund University, Dortmund, Germany.
Introduction: The increasing prevalence of myopia worldwide is problematic because myopia can result in severe secondary pathologies, and is associated with considerable financial burden. With plenty of prevalence data available for some regions, current data for Europe remain sparse. Yet, information on myopia prevalence and associations is essential for monitoring, preventive and interventive purposes.
View Article and Find Full Text PDFIndian J Ophthalmol
January 2025
Dr. Rajendra Prasad Centre for Ophthalmic Sciences, AIIMS, New Delhi, India.
Scleral-fixated intraocular lens (SFIOL) is a widely used technique for IOL implantation in patients where capsular support is insufficient. Most surgeons have shifted away from sutured to sutureless SFIOL techniques where haptics of a multifocal IOL are inserted in scleral tunnels/flaps. Large-scale publications have shown wide variation in the refractive status of eyes post-SFIOL even in the best of the hands.
View Article and Find Full Text PDFIndian J Ophthalmol
January 2025
Department of Ophthalmology, Yaan People's Hospital, Yaan City, Sichuan Province, China.
Objective: This study aimed to investigate the effect of axial elongation on anterior scleral thickness (AST) in myopia.
Methods: The convenience sampling method was used to select 122 patients without ocular or systemic diseases affecting ametropia in Ya'an People's Hospital between March 2020 and January 2022. According to the diopter and axial length (AL), the patients were divided into an emmetropia group (32 cases), a low-to-moderate myopia group (40 cases), and a high myopia group (40 cases).
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!