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Corneal structure in tilted disc syndrome / Estrutura da córnea na síndrome de disco inclinado
Gunduz, Abuzer; Polat, Nihat; Cumurcu, Tongabay; Demirel, ErsinErsan; Özsoy, Ercan.
  • Gunduz, Abuzer; Inonu University. School of Medicine. Department of Ophthalmology. Malatya. TR
  • Polat, Nihat; Inonu University. School of Medicine. Department of Ophthalmology. Malatya. TR
  • Cumurcu, Tongabay; Inonu University. School of Medicine. Department of Ophthalmology. Malatya. TR
  • Demirel, ErsinErsan; Inonu University. School of Medicine. Department of Ophthalmology. Malatya. TR
  • Özsoy, Ercan; Inonu University. School of Medicine. Department of Ophthalmology. Malatya. TR
Arq. bras. oftalmol ; 79(5): 285-288, Sept.-Oct. 2016. tab, graf
Article in English | LILACS | ID: biblio-827973
ABSTRACT
ABSTRACT

Purpose:

To evaluate the central corneal thickness (CCT), corneal volume (CV), and anterior and posterior corneal surfaces using the Scheimpflug imaging system in patients diagnosed with tilted disc syndrome (TDS).

Methods:

The study group (Group 1) and the control group (Group 2) comprised 35 eyes of 35 age-, sex-, and refraction-matched cases. All cases underwent a full ophthalmic examination that included cycloplegic refraction, axial ocular length measurement, and Scheimpflug imaging.

Results:

The mean age was 34.68 ± 15.48 years in Group 1 and 34.11 ± 12.01 years in Group 2 (p=0.864). The gender distribution was 18 males and 17 females in Group 1 and 16 males and 19 females in Group 2 (p=0.618). All subjects were Caucasian. The spherical equivalent was 3.62 ± 1.75 D in Group 1 and 3.69 ± 1.51 D in Group 2 (p=0.850). There was no significant difference in age, sex, race, or spherical equivalent between groups. There was no significant difference in mean keratometric value and CV3 (the CV in the central 3 mm) between groups (p=0.232 and 0.172, respectively). There were statistically significant differences in CCT, CV5, and CV7 (CV in the central 5 and 7 mm3, respectively) and total CV between groups (p=0.008, 0.003, 0.023, and 0.019, respectively). The values of all parameters were lower in the study group than in the control group. There was also a statistically significant difference in the anterior elevation parameters of the cornea between groups (p<0.05). The mean values of Group 1 were higher than those of Group 2. There were statistically significant differences in the two parameters referring to the posterior elevation of the cornea between the two groups (p<0.05).

Conclusion:

The results of this study showed that eyes with TDS have thinner CCT, lower CV, and different anterior corneal curvature than normal eyes.
RESUMO
RESUMO

Objetivo:

Avaliar a espessura central da córnea (CCT), o volume de córnea (CV), e a superfície corneana anterior e posterior utilizando sistema de imagem Scheimpflug em pacientes com diagnóstico de síndrome do disco inclinado (TDS).

Métodos:

O grupo de estudo (grupo 1) e o grupo controle (grupo 2) consistiu de 35 olhos de 35 pacientes pareados por idade, sexo e refração em cada grupo. Todos os casos foram submetidos a um exame oftalmológico completo incluindo refração sob cicloplegia, medida do comprimento axial ocular e avaliação por Scheimpflug.

Resultados:

A idade média foi de 34,68 ± 15,48 anos no grupo 1 e 34.11 ± 12,01 anos no grupo 2 (p=0,864). A distribuição por sexo foi de 18 homens e 17 mulheres do grupo 1 e 16 homens e 19 mulheres no grupo 2 (p=0,618). Todos os indivíduos eram caucasianos. O equivalente esférico foi 3,62 ± 1,75 D no Grupo 1 e 3,69 ± 1,51 D no Grupo 2 (p=0,850). Não houve diferença significativa entre os dois grupos para idade, sexo, raça e equivalente esférico. Não houve diferença significativa entre os dois grupos para o valor médio ceratométrico e CV3 (o volume da córnea na central 3 mm) (p=0,232, p=0,172, respectivamente). Houve diferença estatisticamente significativa entre os dois grupos para CCT, CV5, CV7 (volume de córnea na região central 5 e 7 mm, respectivamente) e CV total (p=0,008, p=0,003, p=0,023 e p=0,019, respectivamente). Os valores do grupo de estudo foram menores do que o grupo controle para todos os parâmetros. Houve também diferença estatisticamente significativa entre os dois grupos nos parâmetros elevação anterior da córnea (p<0,05). Os valores médios do grupo 1 foram maiores do que o grupo 2. Não houve diferença entre os dois grupos para os dois parâmetros referentes à elevação posterior da córnea (p<0,05).

Conclusões:

Nosso estudo mostrou que os olhos com TDS apresentam CCT mais fina, menor volume da córnea e alterações na curvatura corneana anterior quando comparados aos olhos normais.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Optic Disk / Optic Nerve Diseases / Cornea Type of study: Observational study / Prevalence study / Risk factors Limits: Adolescent / Adult / Female / Humans / Male Language: English Journal: Arq. bras. oftalmol Journal subject: Ophthalmology Year: 2016 Type: Article Affiliation country: Turkey Institution/Affiliation country: Inonu University/TR

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Full text: Available Index: LILACS (Americas) Main subject: Optic Disk / Optic Nerve Diseases / Cornea Type of study: Observational study / Prevalence study / Risk factors Limits: Adolescent / Adult / Female / Humans / Male Language: English Journal: Arq. bras. oftalmol Journal subject: Ophthalmology Year: 2016 Type: Article Affiliation country: Turkey Institution/Affiliation country: Inonu University/TR