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  • Title: [Preoperative scanning laser ophthalmoscopy: findings in idiopathic macular foramen].
    Author: Kristin N, Ehrt O, Gass CA, Haritoglou C, Kampik A.
    Journal: Ophthalmologe; 2001 Nov; 98(11):1060-4. PubMed ID: 11729737.
    Abstract:
    BACKGROUND: The aim of our study was a detailed morphological and functional assessment of macular foramen stages II-IV by scanning laser ophthalmoscopy (SLO) and fundus perimetry including a correlation with clinical findings. METHODS AND MATERIALS: Included in this prospective study were 78 patients where SLO imaging and fundus perimetry were performed with the SLO-105 (Rodenstock) prior to pars plana vitrectomy for macular foramen on one eye. Both the size and shape the of macular foramen were assessed. Deep (0 dB) and relative (12 dB) scotomata were tested using the Goldmann II stimulus in the 20 degrees field of the SLO. Imaging was performed with the infrared laser and confocal aperture C2. RESULTS: The size of macular foramen ranged from 140 microns to 800 microns (median: 420 microns) and 20 (26%) had irregular, polycyclic borders. In 21 patients (27%) a bright sector could be seen just outside the hole. Deep scotomata were notably smaller than the visible macular hole in 4 patients (6%) and 18 deep scotomata (25%) extended beyond the hole. There was a weak inverse correlation between the size of deep, relative scotomata and the diameter of the macular holes with the visual acuity (r = -0.46; r = -0.39 or r = -0.53), but no correlation with the duration of symptoms could be demonstrated. CONCLUSION: Polycyclic borders were seen as a new feature of some idiopathic macular foramen. This may be due to asymmetric traction or adhesions on the macular area. Also, deep scotomata either smaller or larger than the visible macular hole were found.
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