China
Africa
Explore chapters and articles related to this topic
Congenital Cranial Dysinnervation Disorder
Published in Vivek Lal, A Clinical Approach to Neuro-Ophthalmic Disorders, 2023
Correction of refractive error is an essential component of non-surgical management of DRS, and treatment of amblyopia should be initiated where possible. To decide for surgical correction, the following points should be assessed prior: Deviation in primary positionQuantification of limitation of abductionThe severity of globe retractionOvershoots present in adduction
Refractive Errors, Myopia, and Presbyopia
Published in Ching-Yu Cheng, Tien Yin Wong, Ophthalmic Epidemiology, 2022
Ka Wai Kam, Chi Pui Pang, Jason C. S. Yam
Refractive errors are a group of ophthalmic disorders that individually or in combination affect individuals of all ages and ethnicities in both sexes. When the optical system in an eye fails to bring incoming light into focus on the retina, the resultant image perceived by the individual becomes blurred. Refractive errors can be classified into three main types: myopia, astigmatism, and hyperopia. There is also presbyopia, which literally means aging vision, and affects people at a later stage in life, usually in the fifth decade. It is sometimes included as a fourth type of refractive error, although it may be regarded not as an error of refraction because it is due to the loss of accommodation by the lens.
When There Are Symptoms But it All Looks Totally Normal
Published in Amy-lee Shirodkar, Gwyn Samuel Williams, Bushra Thajudeen, Practical Emergency Ophthalmology Handbook, 2019
Refractive error: Previously undiagnosed amblyopia or refractive error should also be considered. If the patient has not had an eye examination in the past, then this may have gone unnoticed for many years. Be sure to ask if the patient ever had to wear a patch as a child or if they had any previous injuries or infections. Refer the patient to an optometrist for a formal assessment and correction as required. Remember you do not get an RAPD with poor vision due to amblyopia.
Top 100 Most Cited Papers in Laser-Assisted in situ Keratomileusis Surgery: A Bibliometric Analysis
Published in Seminars in Ophthalmology, 2022
Erin Flynn, Haig Pakhchanian, Preet Sohal, Rishabh Gupta, Rahul Raiker, Masumi G. Asahi, David Belyea
In the field of ophthalmology, vision science, and optometry, there are over 110 peer-reviewed journals.3 Bibliometric analysis already has assisted in guiding ophthalmologists on topics of research such as keratoconjunctivitis sicca, retinal detachment, and sex disparities in scientific authorship.4–6 Since its development in 1990, LASIK has become a popular and mainstream procedure for the correction of refractive error with over 35 million procedures performed worldwide as of 2010.7 In 2008, Fan et al published a citation analysis of the most influential authors and periodicals in the topics of laser-assisted in situ keratomileusis (LASIK) surgery and cataracts from 2000 to 2004. This publication provided valuable insights into the leading investigators and journals in LASIK at the time.7 However, this study is no longer representative of the current state of research in the field.
Clinical Practice Guidelines for the Detection and Treatment of Amblyopia: A Systematic Literature Review
Published in Journal of Binocular Vision and Ocular Motility, 2022
Gareth Lingham, Myra B. McGuinness, Sare Safi, Iris Gordon, Jennifer R. Evans, Stuart Keel
Screening programs are intended to detect individuals at high risk of amblyopia among a healthy population to facilitate earlier access to treatment and vary greatly in diagnostic accuracy.17,18 In areas of low amblyopia prevalence, high rates of false positives following vision screening decrease confidence in screening programs, and therefore the type of screening program (which is increasingly instrument-based in North America) must be taken into account when considering recommendations for implemention.18 In comparison, comprehensive eye examinations are intended to diagnose/rule out ophthalmic conditions and assess refractive error. One or more in-person comprehensive eye examinations by an appropriately trained professional may improve detection rates and should reduce reliance on screening programs. However, comprehensive exams are more costly to individuals and the healthcare system, require a greater trained workforce capacity, and often place an additional level of responsibility on parents compared to that required for screening programs.
Increased Expressions of ICAM-2 and ICAM-3 in Pterygium
Published in Current Eye Research, 2019
Seniz Demiryürek, Ahmet Saracaloglu, Sabit Kimyon, Alper Mete, Omer Eronat, Ebru Temiz, Gülper Nacarkahya, Zeynep Sav Tunca, Betül Düzen, Oguzhan Saygili, Kıvanc Güngör, Metin Karakök, Abdullah T. Demiryürek
A total of 59 patients with a primary pterygium (29 men and 30 women) assessed in our university ophthalmology department and the ophthalmology clinic of the Gaziantep Dr. Ersin Arslan Training and Research Hospital was recruited into this study. Each subject underwent ocular examinations including determination of refractive error, best-corrected visual acuity, and central corneal thickness, slit-lamp examination and fundoscopy. The refractive error value was calculated as spherical equivalent for the analyses. Patients included in the study had a primary pterygium with an apex of at least 1 mm invading the cornea. Pterygial and normal conjunctival tissue samples were obtained during pterygium excision surgery with conjunctival autograft transfer. Conjunctival tissues were from the inferior temporal bulbar conjunctiva of the same eye. This study was approved by the local Ethics Committee, and written informed consent was obtained from the patients prior to participation in the study. The study was performed in compliance with the ethical principles of the Declaration of Helsinki.