RESUMO
@#AIM: To investigate the correlation between macular mierostructure changes and visual outcomes after scleral buckling for macular-off primary rhegmatogenous retinal detachment(RRD)by three-dimensional optical coherence tomography(3D-OCT).<p>METHODS: Retrospective case review, the clinical data of scleral buckling in 30 eyes of 30 cases of RRD involving macular area were analyzed retrospectively. The changes of ellipsoid zone(EZ), external 1imiting membrane(ELM), subretinal fluid(SRF)and central retinal thickness(CRT)were observed and the relationship between them and best corrected visual acuity(BCVA)was analyzed by 3D-OCT at 2d, 2wk, 1, 3 and 6mo after operation.<p>RESULTS: Postoperative SRFH and CRT showed a descended trend. Postoperative BCVA showed an ascendant trend. Multiple comparisons: there were significant difference in each groups except SRFH(2wk <i>vs</i> 1mo, <i>P</i>>0.05), CRT(2d <i>vs</i> 2wk, <i>P</i>>0.05), BCVA(2d <i>vs</i> preoperation, 2wk <i>vs</i> preoperation, <i>P</i>>0.05). There are four forms of EZ and ELM::9 eyes, intact ELM and EZ(EZ+ELM+); B: 7 eyes, intact ELM with disrupted EZ:(EZ-ELM+); AC: 6 eyes, intact EZ with disrupted ELM:(EZ+ELM-); D: 8 eyes, disrupted ELM and EZ:(EZ-ELM-), the BCVA of the above four types are 0.15±0.04, 0.50±0.06, 0.54±0.05 and 0.59±0.09, there were significant difference in each groups except(C <i>vs</i> B, <i>P></i>0.05)and(C <i>vs</i> D, <i>P</i>>0.05). The incidence of SRF was 87% 2d after operation, 46.6% patients had persistent SRF at 6mo after operation. Postoperative CRT was positively correlated with postoperative SRFH.<p>CONCLUSION: After scleral buckling, the macular microstructure showed dynamic changes. The effect of SRF may be manifested as BCVA delayed recovery. With the slow absorption of SRF, CRT decreased and BCVA increased. The intact ELM or EZ shows better vision, but the disrupted ELM means worse vision.
RESUMO
· AlM: To investigate the thicknesses change of macula central fovea(MFT) and retinal nerve fiber layer (RNFL) in children with ametropic amblyopia and normal children. · METHODS: The medical records of 56 children with ametropic amblyopia and 56 normal children in our hospital during the same period were retrospectively analyzed. Optical coherence tomography ( OCT ) was used to measure the MFT and RNFL.The MFT and RNFL change in two groups were statistically evaluated. · RESULTS: The sex, age and axial length were no significant difference between amblyopia group and control group (P>0.05).The MFT in amblyopia group and control group were 135.15±15.15μm, 136.14±14.26μm respectively (P>0.05).The RNFL in amblyopia group and control group were 117.02 ±8.97μm, 110.43 ±7.94μm respectively, and there was significant difference ( P0.05). ·CONCLUSlON:There are no significant changes in MFT between children with ametropic amblyopia and normal children, but RNFL is thicker in amblyopia group than that in control group, and there is no correlation with axial length.
