[Zhonghua yan ke za zhi] Chinese journal of ophthalmology · 2003
[The recovery of binocular vision in the early post-operative stage of senile cataract patient].
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Qin Xue-jiao, Zhang Xiao, Li Jing-hai, Wang Hong
Аннотация
OBJECTIVE: To study the recovery of binocular vision and the risk factors that affect the recovery in the early post-operative stage of senile cataract patients.
METHODS: Patients undergone extracapsular cataract extraction with intraocular lens implantation (ECCE group) or cataract phacoemulsification with intraocular lens implantation (PHACO group) were examined for their corrected visual acuity, refractive power, simultaneous perception, fusion, near and far-distance stereoacuity.
RESULTS: Before operation, the visual acuity was worse in the ECCE group than that in the PHACO group (chi(2) = 9.769, P < 0.05); After operation, the visual acuity between ECCE group and PHACO group was not statistically significant (chi(2) = 0.52 for operated eyes, P > 0.05, chi(2) = 3.52 for non-operated eyes, P > 0.05). The cylinder anisometropia in ECCE group was worse than the PHACO group (chi(2) = 12.496, P < 0.01). All patients obtained simultaneous perception and fusion sense. There was more or less far-distance stereoacuity 83.3% in ECCE group and 94.7% in PHACO group, which was no statistical significant (chi(2) = 1.456, P > 0.05). Foveal near stereoacuity was established in ECCE group (2.8%) and in PHACO group (21.1%), which were statistically significant (chi(2) = 5.029, P < 0.05).
CONCLUSIONS: There is incomplete recovery of binocular vision in the early post-operative stage of senile cataract patients. The vision depression, especially monocular depression before surgery and the anisometropia after operation may affect the recovery of binocular vision.
METHODS: Patients undergone extracapsular cataract extraction with intraocular lens implantation (ECCE group) or cataract phacoemulsification with intraocular lens implantation (PHACO group) were examined for their corrected visual acuity, refractive power, simultaneous perception, fusion, near and far-distance stereoacuity.
RESULTS: Before operation, the visual acuity was worse in the ECCE group than that in the PHACO group (chi(2) = 9.769, P < 0.05); After operation, the visual acuity between ECCE group and PHACO group was not statistically significant (chi(2) = 0.52 for operated eyes, P > 0.05, chi(2) = 3.52 for non-operated eyes, P > 0.05). The cylinder anisometropia in ECCE group was worse than the PHACO group (chi(2) = 12.496, P < 0.01). All patients obtained simultaneous perception and fusion sense. There was more or less far-distance stereoacuity 83.3% in ECCE group and 94.7% in PHACO group, which was no statistical significant (chi(2) = 1.456, P > 0.05). Foveal near stereoacuity was established in ECCE group (2.8%) and in PHACO group (21.1%), which were statistically significant (chi(2) = 5.029, P < 0.05).
CONCLUSIONS: There is incomplete recovery of binocular vision in the early post-operative stage of senile cataract patients. The vision depression, especially monocular depression before surgery and the anisometropia after operation may affect the recovery of binocular vision.