Peripapillary retinal nerve fiber layer thickness in hyperopic children. 2012

Mehmet Taş, and Veysi Oner, and Fatih Mehmet Türkcü, and Mehmet Fuat Alakuş, and Ali Simşek, and Yalçin Işcan, and Ahmet Taylan Yazici
Department of Ophthalmology, Batman State Hospital, Batman, Turkey.

OBJECTIVE To evaluate the relationship between the spherical equivalent (SE)/axial length and peripapillary retinal nerve fiber layer (RNFL) thickness profile measured using Stratus optical coherence tomography (OCT) in hyperopic children. METHODS One hundred and sixty-four children with hyperopia were analyzed in the study. Subjects were divided into three groups according to their SE values: +3.00 D ≥ SE ≥ +0.50 D were designated as the low hyperopia group, +6.00 D ≥ SE ≥ +3.25 D as moderate hyperopia group, and +9.50 D ≥ SE ≥ 6.25 D as high hyperopia group. RNFL thickness measurements were taken from the superior, inferior, nasal, and temporal quadrants in the peripapillary region by Stratus OCT. Axial length, visual acuity, and SE values were also determined for all patients. RESULTS There were 62 patients in the low hyperopia group, 60 patients in the moderate hyperopia group, and 42 patients in the high hyperopia group. The groups were similar concerning age and gender. The moderate and high hyperopia groups had lower mean BCVAs than low hyperopic group (both p < 0.001). SE and axial length were significantly different among all three groups (all p < 0.001). There were significant differences between low and high hyperopia groups concerning the mean RNFL thickness and the RNFL thicknesses of inferior and nasal quadrants (p = 0.045, p = 0.008, p = 0.03, respectively). However, when magnification attributable to SE/axial length is taken into account, the RNFL thickness differences disappear. CONCLUSIONS We have demonstrated that when measured using the Stratus OCT, which does not take magnification into account, measurements erroneously indicate that children with high hyperopia had thicker RNFLs in inferior and nasal quadrants than children with low hyperopia. The current Stratus OCT normative database may be misleading for correct diagnosis of glaucoma in highly hyperopic children.

UI MeSH Term Description Entries
D006956 Hyperopia A refractive error in which rays of light entering the eye parallel to the optic axis are brought to a focus behind the retina, as a result of the eyeball being too short from front to back. It is also called farsightedness because the near point is more distant than it is in emmetropia with an equal amplitude of accommodation. (Dorland, 27th ed) Farsightedness,Hypermetropia
D008297 Male Males
D009898 Optic Disk The portion of the optic nerve seen in the fundus with the ophthalmoscope. It is formed by the meeting of all the retinal ganglion cell axons as they enter the optic nerve. Blind Spot,Optic Disc,Optic Nerve Head,Optic Papilla,Blind Spots,Disc, Optic,Disk, Optic,Head, Optic Nerve,Nerve Head, Optic,Optic Discs,Optic Disks,Optic Nerve Heads,Optic Papillas,Papilla, Optic,Papillas, Optic,Spot, Blind
D011379 Prognosis A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations. Prognostic Factor,Prognostic Factors,Factor, Prognostic,Factors, Prognostic,Prognoses
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D005260 Female Females
D005500 Follow-Up Studies Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease. Followup Studies,Follow Up Studies,Follow-Up Study,Followup Study,Studies, Follow-Up,Studies, Followup,Study, Follow-Up,Study, Followup
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths

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