Investigation of idiopathic macular hole formation in the elderly patients
- VernacularTitle:老年人特发性黄斑裂孔形成的探讨
- Author:
Jihong YANG
- Publication Type:Journal Article
- Keywords:
Optics;
Macula lutea
- From:
Chinese Journal of Geriatrics
2000;0(06):-
- CountryChina
- Language:Chinese
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Abstract:
Objective To investigate the characteristics of process of the formation of idiopathic macular hole, measurement was made for the patients using optical coherence tomography (OCT). Methods OCT was performed in 55 eyes of 40 cases (40 initially diseased eyes and 15 contralateral eyes). Results OCT images showed that among the 40 initially diseased eyes the number of macular hole of 1, 2, 3 and 4 stages was respectively 1, 11, 23 and 5 eyes. The depth of fovea of eye of stage 1 was 331 ?m. The average diameters of the macular holes in stage s 2, 3 and 4 were respectively 298.1 ?m, 681.2 ?m and 557.5 ?m. Ten out of the 15 contralateral eyes were observed with macular hole (stage 1 and 2 were 6, 3 eyes respectively and lamellar hole was 1 eye). Separation of posterior vitreous was observed in 16 out of 55 macular holes eyes (account for 29%). OCT images showed that there were split and cystic space with separated vitreous centrally attached to the fovea in the case of stage 1. It was observed that the contracted operculum attached to post erior vitreous with an opening apart from the center in the case of stage 2. Stage 3 displayed a full-thickness hole with surrounding edema and stage 4 showed a full-thickness hole and a complete separation of the posterior vitreous from retina. Conclusions OCT can display clearly the size, shape and process of the formation of macular hole. It was observed that the initial changes in the vitreous detachment and fovea by investigation of the contralateral eyes. OCT is also a useful method for the diagnosis, study on the mechanisms of the formation of macular hole.
