TY - JOUR
T1 - Ultra-high Resolution Optical Coherence Tomography Assessment of Photoreceptors in Retinitis Pigmentosa and Related Diseases
AU - Witkin, Andre J.
AU - Ko, Tony H.
AU - Fujimoto, James G.
AU - Chan, Annie
AU - Drexler, Wolfgang
AU - Schuman, Joel S.
AU - Reichel, Elias
AU - Duker, Jay S.
N1 - Funding Information:
This study was supported by NIH contracts RO1-EY11289-16, R01-EY13178, and P30-EY13078, NSF contract ECS-0119452, Air Force Office of Scientific Research contract F49620-98-1-0139, and the Medical Free Electron Laser Program contract F49620-01-1-0186. The authors indicate no financial conflict of interest. Involved in design and conduct of the study (A.J.W., A.C., E.R., J.S.D., T.H.K., J.G.F., W.D., J.S.S.); Involved in collection, management, analysis, and interpretation of the data (A.J.W., A.C., E.R., J.S.D., T.H.K., J.G.F., W.D., J.S.S.); and involved in preparation, review, or approval of the manuscript (A.J.W., A.C., E.R., J.S.D., T.H.K., J.G.F., W.D., J.S.S.).
PY - 2006/12
Y1 - 2006/12
N2 - Purpose: To assess photoreceptor integrity in patients with retinitis pigmentosa (RP) and related diseases using ultra-high resolution optical coherence tomography (UHR-OCT) and to correlate foveal photoreceptor loss with visual acuity. Design: Observational case series. Methods: Nine eyes of nine patients with RP and related diseases were imaged with UHR-OCT at the ophthalmology clinic. Patients were diagnosed based on history, examination, fluorescein angiography, and electroretinography. Concurrently, 36 eyes of 36 normal subjects were imaged with UHR-OCT. Central foveal thickness (CFT) and foveal outer segment/pigment epithelium thickness (FOSPET) were defined and measured on UHR-OCT images in all subjects and were compared between the two groups using unpaired t tests. The two thickness measurements in RP patients were correlated with visual acuity using Pearson correlation and linear regression. Results: UHR-OCT demonstrated macular photoreceptor thinning in all RP patients. The difference in CFT between RP patients and normal subjects was not statistically significant (P = .103), but the difference in FOSPET between the two groups was significant (P = .003). Visual acuity showed a fair correlation with CFT (Pearson r = -0.43, r2 = 0.187, P = .245) and an excellent correlation with FOSPET (Pearson r = -0.942, r2 = 0.887, P < .0001). Conclusions: In the current study using UHR-OCT, a new thickness measurement termed FOSPET is demonstrated to quantify photoreceptor loss. FOSPET was statistically thinner in patients with RP and related diseases than in normal eyes and showed correlation with logMAR visual acuity. FOSPET appears to be a probable predictor of visual acuity in RP.
AB - Purpose: To assess photoreceptor integrity in patients with retinitis pigmentosa (RP) and related diseases using ultra-high resolution optical coherence tomography (UHR-OCT) and to correlate foveal photoreceptor loss with visual acuity. Design: Observational case series. Methods: Nine eyes of nine patients with RP and related diseases were imaged with UHR-OCT at the ophthalmology clinic. Patients were diagnosed based on history, examination, fluorescein angiography, and electroretinography. Concurrently, 36 eyes of 36 normal subjects were imaged with UHR-OCT. Central foveal thickness (CFT) and foveal outer segment/pigment epithelium thickness (FOSPET) were defined and measured on UHR-OCT images in all subjects and were compared between the two groups using unpaired t tests. The two thickness measurements in RP patients were correlated with visual acuity using Pearson correlation and linear regression. Results: UHR-OCT demonstrated macular photoreceptor thinning in all RP patients. The difference in CFT between RP patients and normal subjects was not statistically significant (P = .103), but the difference in FOSPET between the two groups was significant (P = .003). Visual acuity showed a fair correlation with CFT (Pearson r = -0.43, r2 = 0.187, P = .245) and an excellent correlation with FOSPET (Pearson r = -0.942, r2 = 0.887, P < .0001). Conclusions: In the current study using UHR-OCT, a new thickness measurement termed FOSPET is demonstrated to quantify photoreceptor loss. FOSPET was statistically thinner in patients with RP and related diseases than in normal eyes and showed correlation with logMAR visual acuity. FOSPET appears to be a probable predictor of visual acuity in RP.
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U2 - 10.1016/j.ajo.2006.07.024
DO - 10.1016/j.ajo.2006.07.024
M3 - Article
C2 - 17157580
AN - SCOPUS:33845187792
SN - 0002-9394
VL - 142
SP - 945-952.e1
JO - American Journal of Ophthalmology
JF - American Journal of Ophthalmology
IS - 6
ER -