The macula in pediatric glaucoma: quantifying the inner and outer layers via optical coherence tomography automatic...

Area of Science:

• Ophthalmology
• Medical Imaging
• Pediatric Glaucoma Research

Background:

• Spectralis spectral domain optical coherence tomography (SD-OCT) software enables precise quantification of individual retinal layer thickness.
• The macular ganglion cell layer (GCL) and ganglion cell complex may offer greater sensitivity for glaucoma detection compared to the peripapillary retinal nerve fiber layer (pRNFL).

Purpose of the Study:

• To characterize and compare the macular layer volumes in children diagnosed with glaucoma against healthy controls.
• To evaluate the diagnostic potential of specific macular layers in pediatric glaucoma.

Main Methods:

• Retrospective review of Spectralis SD-OCT imaging data from children with primary glaucoma and controls.
• Exclusion criteria included significant refractive error or other retinal/neurologic abnormalities.
• Comparison of average macular layer volumes and pRNFL thickness between glaucoma and non-glaucoma groups.

Main Results:

• Eyes with glaucoma exhibited significantly reduced volumes in the macular nerve fiber layer, ganglion cell layer, and inner plexiform layer compared to non-glaucoma eyes.
• Peripapillary retinal nerve fiber layer (pRNFL) thickness was also significantly lower in children with glaucoma.
• No significant differences were found between eyes with physiologic cupping and those without.

Conclusions:

• Children diagnosed with glaucoma demonstrate thinning of the three innermost retinal macular layers.
• These findings suggest that macular layer analysis, particularly the GCL, is a valuable tool for diagnosing glaucoma in children.