The ABCD grading system in assessment of corneal cross-linking effect in keratoconus with different cone locations
J. optom. (Internet)
; 16(1)January - March 2023. tab
Artigo
em Inglês
| IBECS
| ID: ibc-214432
Biblioteca responsável:
ES1.1
Localização: ES15.1 - BNCS
ABSTRACT
Purpose:
The aim of this study was to analyse the postoperative corneal cross-linking results of corneal parameters and the ABCD grading system, depending on the cone location.MethodsThirty eyes of 25 patients with keratoconus (KC), who received the corneal cross-linking (CXL) treatment, were included in this study. The exclusion criteria were patients under 18 years of age, corneal pachymetry less than 400 μm, corneal scarring, history of ocular trauma, history of ocular surgery, and corneal pathology other than KC. Patients were examined at the baseline visit, and followed-up at three, six, and twelve months after the CXL. All patients underwent visual acuity and Scheimpflug tomography at all visits. Progression parameters, keratometries, and ABCD grading were compared between the visits. Patients were classified into two groups central and paracentral cones group (within the central 5 mm corneal zone) and peripheral cones group (outside the central 5 mm corneal zone), based on X-Y coordinates of maximal keratometry (Kmax).ResultsParameter A remained relatively stable throughout the follow-up period in both groups. Parameter B and parameter C showed a significant increase in both groups postoperatively. Parameter D showed stability at the 6-month post-CXL visit in the peripheral KC group, while the central and paracentral KC group showed improvement at the 12-month post-CXL visit.ConclusionThere was no significant difference in the postoperative response between different cone locations in the ABCD grading system, when classifying according to the Kmax, except an earlier recovery of the parameter D in peripherally located cones. (AU)
Texto completo:
Disponível
Coleções:
Bases de dados nacionais
/
Espanha
Base de dados:
IBECS
Assunto principal:
Riboflavina
/
Colágeno
/
Fármacos Fotossensibilizantes
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Topografia da Córnea
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Reagentes de Ligações Cruzadas
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Paquimetria Corneana
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Ceratocone
Limite:
Adolescente
/
Humanos
Idioma:
Inglês
Revista:
J. optom. (Internet)
Ano de publicação:
2023
Tipo de documento:
Artigo
Instituição/País de afiliação:
Rudjer Boskovic Institute/Croatia
/
University Eye Hospital Svjetlost/Croatia
/
University Hospital Center Sestre milosrdnice/Croatia