Differentiation of mild keratoconus from corneal warpage according to topographic inferior steepening based on corneal tomography data

Patrão, Lia Florim; Canedo, Ana Laura; Azevedo, João Luiz Peixoto Braga de; Correa, Rosane; Ambrósio, Renato

doi:10.5935/0004-2749.20160075

Cited by 6 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Notwithstanding initial discomfort, many patients wear RGPCLs for several hours each day [ 45 ]. Ocular surface and tear film alteration associated with the use of CLs have been previously described in scientific literature [ 61 – 63 ]. Changes in KC patients might be associated with CL use, rather than with the pathology itself [ 64 ].…”

Section: Resultsmentioning

confidence: 99%

Nonsurgical Procedures for Keratoconus Management

Rico-del-Viejo

García-Montero

Hernández-Verdejo

et al. 2017

Journal of Ophthalmology

View full text Add to dashboard Cite

Objectives To describe the past 20 years' correction modalities for keratoconus and their visual outcomes and possible complications. Methods A review of the published literature related to the visual outcomes and possible complications in the context of keratoconus management using nonsurgical procedures for the last 20 years (glasses and contact lenses) was performed. Original articles that reported the outcome of any correction modalities of keratoconus management were reviewed. Results The most nonsurgical procedure used on keratoconus management is the contact lens fitting. Soft contact lenses and soft toric contact lenses, rigid gas-permeable contact lenses, piggyback contact lens system, hybrid contact lenses, and scleral and corneoscleral contact lenses form the contemporary range of available lens types for keratoconus management with contact lenses. All of them try to restore the vision, improve the quality of life, and delay surgical procedures in patients with this disease. Complications are derived from the intolerance of using contact lens, and the use of each depends on keratoconus severity. Conclusions In the context of nonsurgical procedures, the use of contact lenses for the management of keratoconic patients represents a good alternative to restore vision and improve the quality of live in this population.

show abstract

Section: Resultsmentioning

confidence: 99%

Nonsurgical Procedures for Keratoconus Management

Rico-del-Viejo

García-Montero

Hernández-Verdejo

et al. 2017

Journal of Ophthalmology

View full text Add to dashboard Cite

show abstract

“…Signs and symptoms of the disease vary greatly and some of them depend on the stage of the disease (9). The Mounson Sign and Rizzuti phenomenon are some of findings of the disease that may be seen in external examination (10).…”

Section: Introductionmentioning

confidence: 99%

One-year epidemiological study of patients with Keratoconus in eastern Iran

Bamdad¹,

Aliakbar²,

Alireza³

et al. 2022

ijhs

View full text Add to dashboard Cite

Background: Keratoconus is a degenerative and progressive of corneal disease. Unlike other country, studies about epidemiology of keratoconus are limited in the Iran. Aim of the study is survey of keratoconus epidemiology in the eastern Iran. Methods: For doing the cross-sectional study, patients were evaluated at the ophthalmology center of Mashhad County, during 2015-2016 year. Firstly, medical history was obtained from all new patients. Ocular examination was done for detection of keratoconus signs including Scissor reflex, Rizzuti sign, Fischer ring, Vogt striae and any sign of previous hydrops. For all suspicious patient’s topography was done. Also, the required demographic data were recorded. The data were analyzed using SPSS software (version 18). Results: Totally, 90 eyes from 45 patients were studied. The average age of patients was 25.1 ± 6 years and the average age of onset of the disease was 17.72 ± 7.76 years. More than half of patients (55.6%) were female. One-sided Keratoconus was found in 11.1 %. In 10 patients (10 eyes), there was history of penetrating keratoplasty due to advanced keratoconus.

show abstract

“…(3) Topographic examinations are useful for diagnosing mild (subclinical) and moderate ectasia; however, slight changes in the posterior surface of the cornea are largely detected. (4) The first signs of keratoconus may occur on the posterior corneal surface even before changes on the anterior surface and are detectable by pachymetry and posterior elevation maps. Thus, tomography is fundamental and indispensable for screening patients with ectatic disease before refractive and cataract surgery.…”

Section: Introductionmentioning

confidence: 99%

Belin/Ambrósio Enhanced Ectasia Display in cataract surgery and relation to final visual acuity

Stock¹,

Berwanger²,

Bonamigo³

2022

Revista Brasileira De Oftalmologia

View full text Add to dashboard Cite

Objective: To analyze and describe the coefficients found on maximum Ambrósio Relational Thickness-Maximum (ART-Max) and Belin/Ambrósio Enhanced Ectasia Display total deviation (BAD-D) in eyes with normal corneal topography subjected to cataract surgery with premium intraocular lens implantation and correlated these data with final visual acuity.Methods: ART-Max and BAD-D data from 103 eyes of patients subjected to implantation of diffractive bifocal intraocular lens, with normal corneal topography who achieved visual acuity of 20/20 or 20/25 without correction after cataract surgery were analyzed. The groups with normal and abnormal values were compared using the chi-square test.Results: Thirty-two (31.1%) and 71 (68.9%) eyes presented normal and abnormal ART-Max values, respectively. The difference between these groups was significant (p=0.0002). Fifty-five (53.4%) and 48 (46.6%) eyes had normal and abnormal BAD-D, respectively, and intergroup difference was not significant (p=0.9576).Conclusion: Among patients with normal corneal topography who underwent premium intraocular and had good final visual acuity of 20/20 or 20/25, suspicious or abnormal indices of ART-Max and BAD-D were frequent, providing evidence that it possibly should not be a contraindication. RESUMOObjetivo: Analisar e descrever os coeficientes numéricos encontrados nos exames Ambrósio Relational Thickness-Maximum (ART-Max) e desvio total do Belin/Ambrósio Enhanced Ectasia Display (BAD-D) em olhos com topografia normal submetidos ao implante de lente intraocular premium na cirurgia de catarata, correlacionando-os com a acuidade visual final pós-operatória. Métodos: Foram analisados os resultados de ART-Max e BAD-D de 103 olhos de pacientes submetidos ao implante de lentes bifocais difrativas, que apresentavam exame topográficos normal e alcançaram acuidade visual 20/20 ou 20/25 sem correção visual no pós-operatório final. Para a análise estatística entre os grupos normais e anormais ou suspeitos, utilizou-se o teste do qui-quadrado. Resultados: Foram encontrados 32 (31,1%) olhos com ART-Max normal e 71 (68,9%) com ART-Max suspeito/anormal. A diferença entre os grupos foi significativa (p=0,0002). Quanto ao BAD-D, foram encontrados 55 (53,4%) olhos com resultados normais e 48 (46,6%) com resultados suspeitos/anormais. A diferença entre os grupos não foi significativa (p=0,9576). Conclusão: Entre os pacientes com topografia normal submetidos ao implante de lentes premium e que alcançaram acuidade visual 20/20 ou 20/25, os índices suspeitos ou anormais de ART-Max e BAD-D eram frequentes, não se configurando em contraindicação para a realização do implante.

show abstract

Differentiation of mild keratoconus from corneal warpage according to topographic inferior steepening based on corneal tomography data

Cited by 6 publications

References 8 publications

Nonsurgical Procedures for Keratoconus Management

Nonsurgical Procedures for Keratoconus Management

One-year epidemiological study of patients with Keratoconus in eastern Iran

Belin/Ambrósio Enhanced Ectasia Display in cataract surgery and relation to final visual acuity

Contact Info

Product

Resources

About