Purpose:.To investigate the stereopsis after single focus intraocular lens (SIOL) implantation in patients aged < 40 years with unilateral cataract. Methods: In total, 36 patients (36 eyes) were divided into emmetr...Purpose:.To investigate the stereopsis after single focus intraocular lens (SIOL) implantation in patients aged < 40 years with unilateral cataract. Methods: In total, 36 patients (36 eyes) were divided into emmetropia and myopia groups. Twenty seven subjects with good uncorrected distance visual acuity (UCDVA) after surgery were enrolled in the emmetropia group..The myopia group consisted of 9 subjects whose one eye had mild myopia postoperatively and the other was emmetropic or myopic. Visual acuity,.distance and near stereoacuity were measured post-operatively. Results:.In the emmetropia group,.uncorrected near visual acuity (UCNVA) did not differ significantly between eyes (t=1.87,P>0.05)..The LogMAR UCNVA of the operated and fellow eyes were (0.71±0.12) and (-0.05±0.07, t=28.4,P< 0.001) respectively..Distance stereoacuity was 60";.the near stereoacuity with uncorrected visual acuity and BCNVA in the operated eyes were 200" and 30" respectively (Z=-4.121,P< 0.001). In the myopia group,.the BCDVA did not differ significantly between the operated and fellow eyes (t=-0.636,P > 0.05)..The UCNVA of the operated eyes (0.18±0.12) was significantly better compared with that of the fellow eyes(-0.04±0.10,.t=4.2252,.P<0.001)..The distance stereoacuity with uncorrected visual acuity and BCDVA in the operated eyes were 200" and 60" respectively (Z =-2.371,P<0.05). The near stereoacuity with uncorrected visual acuity was 50". Conclusion:For patients with unilateral cataract aged<40 years, stereopsis is closely associated with refractive status after IOL implantation..Near stereoacuity in emmetropic eyes can be improved with refraction,.and that in mildly myopic eyes can be enhanced by leaving myopia uncorrected.展开更多
AN 80-year old woman, who was recovering from a bone injury, once told me that she would be traveling around the world for the rest of her life. Listening to her touching and admirable plan, I realized that the loss o...AN 80-year old woman, who was recovering from a bone injury, once told me that she would be traveling around the world for the rest of her life. Listening to her touching and admirable plan, I realized that the loss of one’s ability to do a certain thing will cultivate a longing for that particular thing. This longing was also with me the year I became 40. At that time, I frequently thought back over all l had done during the past 40 years,展开更多
文摘Purpose:.To investigate the stereopsis after single focus intraocular lens (SIOL) implantation in patients aged < 40 years with unilateral cataract. Methods: In total, 36 patients (36 eyes) were divided into emmetropia and myopia groups. Twenty seven subjects with good uncorrected distance visual acuity (UCDVA) after surgery were enrolled in the emmetropia group..The myopia group consisted of 9 subjects whose one eye had mild myopia postoperatively and the other was emmetropic or myopic. Visual acuity,.distance and near stereoacuity were measured post-operatively. Results:.In the emmetropia group,.uncorrected near visual acuity (UCNVA) did not differ significantly between eyes (t=1.87,P>0.05)..The LogMAR UCNVA of the operated and fellow eyes were (0.71±0.12) and (-0.05±0.07, t=28.4,P< 0.001) respectively..Distance stereoacuity was 60";.the near stereoacuity with uncorrected visual acuity and BCNVA in the operated eyes were 200" and 30" respectively (Z=-4.121,P< 0.001). In the myopia group,.the BCDVA did not differ significantly between the operated and fellow eyes (t=-0.636,P > 0.05)..The UCNVA of the operated eyes (0.18±0.12) was significantly better compared with that of the fellow eyes(-0.04±0.10,.t=4.2252,.P<0.001)..The distance stereoacuity with uncorrected visual acuity and BCDVA in the operated eyes were 200" and 60" respectively (Z =-2.371,P<0.05). The near stereoacuity with uncorrected visual acuity was 50". Conclusion:For patients with unilateral cataract aged<40 years, stereopsis is closely associated with refractive status after IOL implantation..Near stereoacuity in emmetropic eyes can be improved with refraction,.and that in mildly myopic eyes can be enhanced by leaving myopia uncorrected.
文摘AN 80-year old woman, who was recovering from a bone injury, once told me that she would be traveling around the world for the rest of her life. Listening to her touching and admirable plan, I realized that the loss of one’s ability to do a certain thing will cultivate a longing for that particular thing. This longing was also with me the year I became 40. At that time, I frequently thought back over all l had done during the past 40 years,