TY - JOUR
T1 - Correlation of Macular Function with Retinal Thickness in Nonproliferative Type 2 Idiopathic Macular Telangiectasia
AU - Charbel Issa, Peter
AU - Helb, Hans Martin
AU - Holz, Frank G.
AU - Scholl, Hendrik P.N.
N1 - Funding Information:
This study was supported by the Lowy Medical Research Institute (The Macular Telangiectasia Project; http://www.mactelresearch.org ); German Research Foundation (DFG) Heisenberg fellowship SCHO 734/2-1; and European Commission (EU FP6) Integrated Project “EVI-GENORET” (LSHG-CT-2005-512036). The authors indicate no financial conflict of interest. Involved in design of the study (P.C.I., H.P.N.S.); conduct of the study (P.C.I., H.M.H., H.P.N.S.); collection, management, analysis, and interpretation of the data (P.C.I., H.M.H., H.P.N.S.); preparation of the manuscript (P.C.I., H.M.H., H.P.N.S.); and review and approval of the manuscript (F.G.H., H.P.N.S.). The study was approved by the Institutional Review Board (Ethikkommission), University of Bonn, Germany and was in adherence to the tenets of the Declaration of Helsinki. Informed consent was obtained from every patient.
PY - 2008/1
Y1 - 2008/1
N2 - Purpose: To correlate macular thickness determined by optical coherence tomography (OCT) with light increment sensitivity and visual acuity in patients with type 2 idiopathic macular telangiectasia (IMT). Design: Prospective, cross-sectional study. Methods: Fifty-one eyes of 30 patients with type 2 IMT were investigated. Functional assessment included best-corrected visual acuity and fundus-related microperimetry (MP1; Nidek Technologies, Padova, Italy). Retinal thickness was analyzed quantitatively by OCT3 (Carl Zeiss Meditec, Jena, Germany). The main outcome measure was the correlation of light sensitivity and visual acuity with retinal thickness. Results: Mean central retinal thickness was reduced compared with that of normal eyes. There was no significant correlation between central foveal thickness and foveal light sensitivity or visual acuity, respectively. Also, there was no significant correlation between mean retinal thickness temporal to the fovea and the lowest light sensitivity within that area. However, central light sensitivity in eyes with normal central foveal thickness was lower than in eyes with subnormal central foveal thickness (P = .032); this was also true for the lowest light sensitivity found temporal to the fovea (P = .025). Mean visual acuity was 20/40 and did not show significant differences in the two thickness groups. Conclusions: A subnormal foveal thickness in type 2 IMT may be associated with better macular function as assessed by microperimetry. It is hypothesized that in type 2 IMT, both a primary neurosensory thinning and a low-grade macular edema can be involved. The coincidence may result in normal retinal thickness but decreased retinal function.
AB - Purpose: To correlate macular thickness determined by optical coherence tomography (OCT) with light increment sensitivity and visual acuity in patients with type 2 idiopathic macular telangiectasia (IMT). Design: Prospective, cross-sectional study. Methods: Fifty-one eyes of 30 patients with type 2 IMT were investigated. Functional assessment included best-corrected visual acuity and fundus-related microperimetry (MP1; Nidek Technologies, Padova, Italy). Retinal thickness was analyzed quantitatively by OCT3 (Carl Zeiss Meditec, Jena, Germany). The main outcome measure was the correlation of light sensitivity and visual acuity with retinal thickness. Results: Mean central retinal thickness was reduced compared with that of normal eyes. There was no significant correlation between central foveal thickness and foveal light sensitivity or visual acuity, respectively. Also, there was no significant correlation between mean retinal thickness temporal to the fovea and the lowest light sensitivity within that area. However, central light sensitivity in eyes with normal central foveal thickness was lower than in eyes with subnormal central foveal thickness (P = .032); this was also true for the lowest light sensitivity found temporal to the fovea (P = .025). Mean visual acuity was 20/40 and did not show significant differences in the two thickness groups. Conclusions: A subnormal foveal thickness in type 2 IMT may be associated with better macular function as assessed by microperimetry. It is hypothesized that in type 2 IMT, both a primary neurosensory thinning and a low-grade macular edema can be involved. The coincidence may result in normal retinal thickness but decreased retinal function.
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U2 - 10.1016/j.ajo.2007.08.028
DO - 10.1016/j.ajo.2007.08.028
M3 - Article
C2 - 17981256
AN - SCOPUS:37249027230
SN - 0002-9394
VL - 145
SP - 169-175.e1
JO - American journal of ophthalmology
JF - American journal of ophthalmology
IS - 1
ER -