Optic disk and retinal characteristics in myopic children.
OBJECTIVE
To examine the baseline retina and optic disk characteristics in children.


METHODS
Cross-sectional study.


METHODS
Subjects included 679 subjects with myopia and 100 with emmetropia, aged 8 to 13 years. Digital retina imaging and cycloplegic autorefraction were conducted to look for signs of retinal degeneration. Other outcome measures were vertical and horizontal cup-to-disk (CD) ratios, CD area ratio, parapapillary atrophy (PPA)-to-disk area ratio, and disk rotational angle.


RESULTS
The prevalence of lattice degeneration was 0.15% (95% confidence interval: 0.008-1.00). No other retinal abnormalities were detected. Increased PPA-to-disk area ratio was associated with increased axial length, increased myopia severity, and increasing age. Cup-to-disk ratios were smaller in subjects with myopia compared with those with emmetropia, but this did not correlate with severity of myopia. In subjects with severe myopia, the upper pole of the disk was rotated away from the fovea but to lesser extent than in those with emmetropia or milder myopia.


CONCLUSIONS
Apart from PPA, degenerative features were not commonly found in this study.
Tong
Louis
L
Singapore National Eye Centre, 11 Third Hospital Avenue, Singapore 168751. Louistong@hotmail.com
Saw
Seang-Mei
SM
Chua
Wei-Han
WH
Luu
Chi
C
Cheng
Bobby
B
Yeo
Ian
I
Wong
Edmund
E
Tan
Donald
D
Koh
Adrian
A
D000293:Adolescent; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D009216:Myopia / Q000175:diagnosis*; D009887:Ophthalmoscopy; D009898:Optic Disk / Q000473:pathology*; D009901:Optic Nerve Diseases / Q000175:diagnosis*; D011680:Pupil / Q000187:drug effects; D012029:Refraction, Ocular; D012160:Retina / Q000473:pathology*; D012164:Retinal Diseases / Q000175:diagnosis*; D014065:Tonometry, Ocular