scholarly journals 6-6-2020: A date that went viral among ophthalmologists

2021 ◽  
pp. 01-03
Author(s):  
Uma Kulkarni
Keyword(s):  
Visual Acuity ◽  
Emergency Services ◽  
Eye Care ◽  
Mature Cataract ◽  
Normal Visual Acuity ◽  
Short Period

6-6-2020 was a landmark date for the ophthalmology community, not only because of the normal visual acuity connotation of 6/6 and 20/20, but because it genuinely reflects every ophthalmologist’s dream to bring back perfect vision for every patient. The Covid-19 pandemic had forced ophthalmologists to “refuse to operate” albeit for a short period. This narrative describes how, during a telemedicine call, a surgeon experienced the distress of refusing to operate on a mature cataract. It reveals the trauma caused by the disordered goals of eye care during the pandemic, when elective procedures were abandoned and only emergency services were provided.

On the need for a legislative norm for high degrees of hypermetropia in relation to military-combatant services

1902 ◽  
Vol 2 (10) ◽  
pp. 567-567
Author(s):  
V. F. Velyamovich
Keyword(s):  
Visual Acuity ◽  
Military Service ◽  
Normal Visual Acuity ◽  
The Law

As for the current Russian laws on anomalies in the organs of vision that allow or restrict the ability to perform military service, hyperopia, for which the law does not specify a predetermined degree, is completely ignored, compatible with the requirements of military service. Any hyperopia, no matter how high its degree of abnormal refraction, is recognised as extremely suitable for military service, unless it has a normal visual acuity without glasses.

An Unusual Phenotype in Dutch Patients With Oculocutaneous Albinism Type 4: Evident Hypopigmentation Without Other Ocular Deficits.

2021 ◽  
Author(s):  
Charlotte C Kruijt ◽  
Nicoline E Schalij-Delfos ◽  
Gerard C de Wit ◽  
Ralph F Florijn ◽  
Maria M van Genderen
Keyword(s):  
Visual Acuity ◽  
Visual Pathways ◽  
Oculocutaneous Albinism ◽  
Novel Mutations ◽  
Normal Visual Acuity ◽  
Diagnostic Center ◽  
Foveal Hypoplasia ◽  
Unusual Phenotype ◽  
First Time ◽  
Dutch Cohort

Abstract Purpose: To describe the phenotype of Dutch patients with oculocutaneous albinism type 4 (OCA4).Patients and Methods: We collected data on pigmentation (skin, hair, and eyes), visual acuity (VA), nystagmus, foveal hypoplasia, chiasmal misrouting, and molecular analyses of nine Dutch OCA4 patients from the Bartiméus Diagnostic Center for complex visual disorders.Results: All patients had severely reduced pigmentation of skin, hair, and eyes with iris transillumination over 360 degrees. Three unrelated OCA4 patients had normal VA, no nystagmus, no foveal hypoplasia, and no misrouting of the visual pathways. Six patients had poor visual acuity (0.6 to 1.0 logMAR), nystagmus, severe foveal hypoplasia and misrouting. We found two novel mutations in the SLC45A2 gene, c.310C>T; p.(Pro104Ser), and c.1368+3_1368+9del p.(?).Discussion: OCA4 patients of this Dutch cohort all had hypopigmentation of skin, hair, and iris translucency. However, patients were either severely affected with regard to visual acuity, foveal hypoplasia, and misrouting, or visually not affected at all. We describe for the first time OCA4 patients with an evident lack of pigmentation, but normal visual acuity, normal foveal development and absence of misrouting. This implies that absence of melanin does not invariably lead to foveal hypoplasia and abnormal routing of the visual pathways.

scholarly journals Prevalence of amblyopia and patterns of refractive error in the amblyopic children of a tertiary eye care center of Nepal

2013 ◽  
Vol 5 (1) ◽  
pp. 38-44 ◽  
Author(s):  
K Sapkota ◽  
A Pirouzian ◽  
NS Matta
Keyword(s):  
Visual Acuity ◽  
Refractive Error ◽  
Chart Review ◽  
Care Center ◽  
Retrospective Chart Review ◽  
Ophthalmological Examination ◽  
Eye Care ◽  
Common Cause ◽  
Ocular Pathology ◽  
The Mean

Introduction: Refractive error is a common cause of amblyopia. Objective: To determine prevalence of amblyopia and the pattern and the types of refractive error in children with amblyopia in a tertiary eye hospital of Nepal. Materials and methods: A retrospective chart review of children diagnosed with amblyopia in the Nepal Eye Hospital (NEH) from July 2006 to June 2011 was conducted. Children of age 13+ or who had any ocular pathology were excluded. Cycloplegic refraction and an ophthalmological examination was performed for all children. The pattern of refractive error and the association between types of refractive error and types of amblyopia were determined. Results: Amblyopia was found in 0.7 % (440) of 62,633 children examined in NEH during this period. All the amblyopic eyes of the subjects had refractive error. Fifty-six percent (248) of the patients were male and the mean age was 7.74 ± 2.97 years. Anisometropia was the most common cause of amblyopia (p < 0.001). One third (29 %) of the subjects had bilateral amblyopia due to high ametropia. Forty percent of eyes had severe amblyopia with visual acuity of 20/120 or worse. About twothirds (59.2 %) of the eyes had astigmatism. Conclusion: The prevalence of amblyopia in the Nepal Eye Hospital is 0.7%. Anisometropia is the most common cause of amblyopia. Astigmatism is the most common types of refractive error in amblyopic eyes. Nepal J Ophthalmol 2013; 5(9):38-44 DOI: http://dx.doi.org/10.3126/nepjoph.v5i1.7820

Bilateral Optic Nerve Hypoplasia with Normal Visual Acuity

1978 ◽  
Vol 86 (4) ◽  
pp. 524-529 ◽  
Author(s):  
Ake Bjork ◽  
C.-G. Laureix ◽  
Ulla Laurell
Keyword(s):  
Visual Acuity ◽  
Optic Nerve ◽  
Optic Nerve Hypoplasia ◽  
Normal Visual Acuity

scholarly journals Effects of spectacles and telescopes on visual function in students with oculocutaneous albinism

2020 ◽  
Vol 20 (2) ◽  
pp. 758-767
Author(s):  
Siddeeqa Jhetam ◽  
Khathutshelo P Mashige
Keyword(s):  
Visual Acuity ◽  
Contrast Sensitivity ◽  
Reading Rate ◽  
Oculocutaneous Albinism ◽  
Eye Care ◽  
Significant Difference ◽  
Observational Study Design ◽  
The Mean ◽  
Better Than ◽  
Spectacle Correction

Purpose: To investigate the effects of spectacle and telescope corrections on visual acuity (VA), contrast sensitivity (CS) and reading rates (RR) in students with oculocutaneous albinism (OCA). Methods: An observational study design was conducted on 81 students with OCA. Distance and near VA, CS and RR were measured without correction, with spectacle correction and with a combination of spectacle correction and telescopes. Results: The mean distance and near VA values with a combination of spectacle correction and telescopes were significantly better than those without correction and with spectacle correction alone (p = 0.01). Mean CS values achieved with spectacles alone were significantly better than those obtained with a combination of spectacles and telescopes (p = 0.01). There was no significant difference between logCS values obtained without correction compared to those obtained with a combination of spectacle correction and telescopes. There were no significant differences between RR values obtained with a combination of spectacles and telescopes and those without and with spectacle correction alone (all p > 0.05). Conclusion: This article provides valuable information to eye care practitioners on the effects of spectacles and telescopes on visual acuity, contrast sensitivity and reading rate in students with OCA. Keywords: Oculocutaneous albinism; visual acuity; telescope; contrast sensitivity; reading rate.

scholarly journals Prevalence of severe visual impairment and barriers to access eye care services in the Udupi district

2021 ◽  
Vol 17 (4) ◽  
pp. 343-355
Author(s):  
Lavanya G. Rao ◽  
Dushyanth Sharma ◽  
Sulatha V. Bhandary ◽  
Divya Handa ◽  
Yogish Kamath
Keyword(s):  
Health Care ◽  
Visual Acuity ◽  
Confidence Interval ◽  
Visual Impairment ◽  
Tertiary Care ◽  
Eye Care ◽  
Cross Sectional ◽  
Care Services ◽  
Care Facilities ◽  
Lack Of Knowledge

Aim: To assess the prevalence of severe visual impairment (SVI) and reasons for not accessing eye care services in a field practice area of a tertiary care hospital. Study design: Cross-sectional observational study. Materials and methods: Through a cross-sectional study using simple random sampling, a total of 1510, individuals above 18 years of age, from six rural and maternity welfare centers (RMCW) within a distance of 20 km from a tertiary hospital were approached. All participants underwent basic assessment of visual acuity, anterior segment evaluation using torch light, and answered a structured questionnaire on eye care. Results: Of 1510 subjects, 267 had SVI (defined as visual acuity < 6/60 either in one or both eyes) with a prevalence of 17.7%. SVI was higher among men and those above 60 years of age (52.8%). Significant association was found between barriers to accessing eye care facilities and lack of knowledge to access health care (p = 0.004), lack of financial support (95% CI, p = 0.006), and social reasons (95% CI, p = 0.028). Prevalence of SVI among diabetics was 32.7% as compared to non-diabetics (OR: 2.630; 95% confidence interval: 1.864–3.712), and among hypertensives was 34.61% as compared to non-hypertensives (OR: 2.836; 95% confidence interval: 1.977–4.068). Conclusion: In spite of being close to a tertiary care center, a prevalence of SVI in 17.7% of this population indicates a lack of knowledge regarding the importance of self-health care in subjects. This emphasizes the need to increase the awareness among the general public to access the ophthalmic health care facilities in order to improve the ocular health of the patients.

Single spot PDT in patients with circumscribed choroidal haemangioma and near normal visual acuity

2006 ◽  
Vol 244 (9) ◽  
pp. 1178-1182 ◽  
Author(s):  
F. D. Verbraak ◽  
R. O. Schlingemann ◽  
M. D. de Smet ◽  
J. E. E. Keunen
Keyword(s):  
Visual Acuity ◽  
Single Spot ◽  
Normal Visual Acuity

scholarly journals Fast Recovery of the Amblyopic Eye Acuity of Kittens following Brief Exposure to Total Darkness Depends on the Fellow Eye

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Donald E. Mitchell ◽  
Elise Aronitz ◽  
Philip Bobbie-Ansah ◽  
Nathan Crowder ◽  
Kevin R. Duffy
Keyword(s):  
Visual Acuity ◽  
Neural Activity ◽  
Early Life ◽  
Monocular Deprivation ◽  
Total Darkness ◽  
Visual Recovery ◽  
Fast Recovery ◽  
Fellow Eye ◽  
Neural Connections ◽  
Short Period

Recent studies conducted on kittens have revealed that the reduced visual acuity of the deprived eye following a short period of monocular deprivation imposed in early life is reversed quickly following a 10-day period spent in total darkness. This study explored the contribution of the fellow eye to the darkness-induced recovery of the acuity of the deprived eye. Upon emergence of kittens from darkness, the fellow eye was occluded for different lengths of time in order to investigate its effects on either the speed or the extent of the recovery of acuity of the deprived eye. Occlusion of the fellow eye for even a day immediately following the period spent in darkness blocked any recovery of the acuity of the deprived eye. Moreover, occlusion of the fellow eye two days after the period of darkness blocked any further visual recovery beyond that achieved in the short period when both eyes were open. The results imply that the darkness-induced recovery of the acuity of the deprived eye depends upon, and is guided by, neural activity in the mature neural connections previously established by the fellow eye.

Sign in / Sign up

Export Citation Format

Share Document