Quantification of cone loss after surgery for retinal detachment involving the macula using adaptive optics
| Autor: | Maher Saleh, Mathieu Flores, Bernard Delbosc, Perle Tumahai, C Schwartz, M Meillat, Guillaume Debellemanière, M Bidaut Garnier |
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| Rok vydání: | 2014 |
| Předmět: |
Adult
medicine.medical_specialty Visual acuity genetic structures Sulfur Hexafluoride Visual Acuity Cell Count Endotamponade Cryosurgery Retina Cellular and Molecular Neuroscience Postoperative Complications Vitrectomy Medicine Humans Adaptive optics business.industry Retinal Detachment Retinal detachment Cone (category theory) medicine.disease eye diseases Sensory Systems Surgery Ophthalmology medicine.anatomical_structure Treatment surgery Retinal Cone Photoreceptor Cells sense organs Inner segment medicine.symptom business Tomography Optical Coherence |
| Zdroj: | The British journal of ophthalmology. 98(10) |
| ISSN: | 1468-2079 |
| Popis: | To image the cones in eyes with anatomically successful repair of retinal detachment (RD) involving the macula and in healthy fellow eyes using an adaptive optics (AO) camera and to correlate the results to clinical outcomes.Twenty-one patients (42 eyes) operated for macula-off RD were imaged 6 weeks after surgery using an AO camera (RTX 1, Imagine Eyes, Orsay, France). Cone density (cells/mm(2)), spacing between cells (µm) and the percentage of cones with six neighbours were measured. Best-corrected visual acuity (BCVA) and thickness of the inner segment ellipsoid (ISe) band imaged by SD-optical coherence tomography were also measured.The parafoveal cone density was decreased in eyes operated for RD (mean ± SD 14,576 ± 4035/mm(2)) compared with fellow eyes (20,589 ± 2350/mm(2)) (p=0.0001). There was also an increase in cone spacing (10.3 ± 2.6 vs 8.0 ± 1.0.9 µm, respectively, p0.0001). The nearest-neighbour analysis revealed a reduction in the percentage of cones with six neighbours (36.5 ± 4.2 vs 42.7 ± 4.6%, p=0.0003). The ISe thickness, thinner in the operated eyes, was correlated to the cone density (r=0.62, p0.0001). BCVA was significantly correlated to cone density (r=0.8, p0.001).There was a decrease in the cone density after RD with an estimated loss of one-third of the cones. Postoperative visual acuity was highly correlated with the cone density. AO may be a valuable prognostic tool after RD surgery. |
| Databáze: | OpenAIRE |
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