April 2014
Volume 55, Issue 13
Free
ARVO Annual Meeting Abstract  |   April 2014
One Year Follow-up of Macular Ganglion Cell Layer and Peripapillary Retinal Nerve Fiber Layer Thickness Changes after Panretinal Photocoagulation
Author Affiliations & Notes
  • Dong Ho Park
    Ophthalmology, Kyungpook National Univ Hospital, Daegu, Republic of Korea
  • Jae Pil Shin
    Ophthalmology, Kyungpook National Univ Hospital, Daegu, Republic of Korea
  • In Taek Kim
    Ophthalmology, Kyungpook National Univ Hospital, Daegu, Republic of Korea
  • Footnotes
    Commercial Relationships Dong Ho Park, None; Jae Pil Shin, None; In Taek Kim, None
  • Footnotes
    Support None
Investigative Ophthalmology & Visual Science April 2014, Vol.55, 4422. doi:
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      Dong Ho Park, Jae Pil Shin, In Taek Kim; One Year Follow-up of Macular Ganglion Cell Layer and Peripapillary Retinal Nerve Fiber Layer Thickness Changes after Panretinal Photocoagulation. Invest. Ophthalmol. Vis. Sci. 2014;55(13):4422.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose: To assess the changes of ganglion cell-inner plexiform layer (GCIPL) thickness, retinal nerve fiber layer (RNFL) thickness, and central subfield thickness (CST) after panretinal photocoagulation (PRP) in diabetic retinopathy for 1 year.

Methods: This prospective, interventional case series study examined 35 patients (35 eyes) undergoing PRP, who were diagnosed with severe nonproliferative diabetic retinopathy to non-high-risk proliferative diabetic retinopathy without macular edema. Macular GCIPL thickness, CST, and peripapillary RNFL thickness were measured by spectral-domain OCT at baseline and then at 1, 3, 6, 9, and 12 months after PRP.

Results: Macular GCIPL and peripapillary RNFL (average and all sections) thickness at each follow-up increased significantly from the baseline (p<0.001, respectively). The average, superior, and inferior RNFL thickness at 12 months after PRP decreased significantly compared to the 1 month post-PRP (p=0.007, p=0.028, and p=0.025). The average GCIPL and temporal RNFL thickness showed a significant correlation at each follow-up (p<0.001, respectively). CST at each follow-up increased significantly from the baseline (p<0.001, respectively).

Conclusions: The macular GCIPL and peripapillary RNFL thickness increased throughout the 1 year post-PRP. Furthermore, the macular GCIPL and temporal RNFL thickness showed a significant correlation throughout the 1 year of follow-up.

Keywords: 499 diabetic retinopathy • 578 laser • 688 retina  
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