Aqueous humor provides the necessary nutrition for the lens and transports the metabolites in the eye.It was a liquid that can directly reflect the microenvironment in the eye'and it can be easily obtained during ...Aqueous humor provides the necessary nutrition for the lens and transports the metabolites in the eye.It was a liquid that can directly reflect the microenvironment in the eye'and it can be easily obtained during the operation.This review intended to analyze the components of aqueous humor in patients with different types of cataracts'so as to reflect the pathogenesis and development of the disease'evaluate the incidence of postoperative complications and provide reference value for the surgical design of sequential cataract surgery.The aqueous humor components of different types of cataracts showed different degrees of inflammation'oxidative stress and extracellular matrix remodeling.The biomarker of early neuropathy in diabetic cataract was neural cell adhesion molecule-1(NCAM1).Transforming growth factor-β(TGF-β)was the evaluation factor of disease development in patients with pseudoexfoliation syndrome.The relationships between postoperative complications of different types of cataracts and aqueous humor components were as follows:Macular edema after diabetic cataract surgery was associated with tumor necrosis factor-alpha;capsular contraction after high myopic cataract surgery was related to monocyte chemoattractant protein-1(MCP-1)and TGF-β2;Klotho and glutathione S-transferase P 1(GSTP1)were associated with high intraocular pressure after primary open-angle glaucoma complicated by cataract surgery;capsular contraction after retinitis pigmentosa complicated by cataract surgery was associated with matrix metalloproteinases;pro-inflammatory cytokines and fibroblast growth factor 4 in the aqueous humor of congenital cataracts were associated with posterior capsular opacification after surgery.Granulocyte colony stimulating factor 3 and MCP-1 were the main cytokines mediating the pain of the second eye in the binocular sequential cataract surgery short interval(1 wk)'while MCP-1 mediated pain in the long interval(6 wk).The second eye after binocular sequential cataract surgery had a higher level of proinflammatory factors.The components of aqueous humor in patients with different types of cataracts were related to the pathogenesis and postoperative complications of the disease.Monitoring the components of the aqueous humor could help better understand the intraocular microenvironment of different types of cataracts and provide a reference for predicting the development of the disease and implementing relevant targeted therapy.展开更多
Objective To understand the perception for the use of cataract surgical services in a population acceptors and non-acceptors of cataract surgery in urban Beijing. Methods From a community-based screening program a to...Objective To understand the perception for the use of cataract surgical services in a population acceptors and non-acceptors of cataract surgery in urban Beijing. Methods From a community-based screening program a total of 158 patients with presenting visual acuity of less than 6/18 on either eye due to age-related cataract were informed about the possibility of surgical treatment. These patients were interviewed and re-examined 36 to 46 months after initial screening. The main reasons for not accepting surgery were obtained using a questionnaire. Vision function and vision-related quality of life scores were assessed in those who received and did not receive surgery. Results At the follow-up examination 116 of the 158 patients were available and 36 （31.0%） had undergone cataract surgery. Cases who chose surgery had higher education level than those who did not seek surgery （OR=2.64, 95% CI： 1.08-6.63, P=0.02）. There were no significant differences in vision function （P=0.11） or quality of life scores （P=0.16） between the surgery group and the non-surgery group. Main reasons for not having surgery included no perceived need （50.0%）, feeling of being ＂too old＂ （19.2%）, and worry about the quality of surgery （9.6%）. Cost was seeking surgery. cited by 1 （1.9%） subject as the main reason for not展开更多
Objective To explore the clinical significance of the combined application of palpebral margin cleaning and antibiotic eye drops in inhibiting bacterial growth in the palpebral margin and conjunctival sacs before cata...Objective To explore the clinical significance of the combined application of palpebral margin cleaning and antibiotic eye drops in inhibiting bacterial growth in the palpebral margin and conjunctival sacs before cataract extraction.Methods In this study,61 patients(97 eyes)with age-related cataract who underwent phacoemulsification and intraocular lens implantation were selected,and randomly grouped.In the experimental group,the combined application of palpebral margin cleaning with cotton pads and levofloxacin eye drops was given for three days before the surgery.In the control group,levofloxacin eye drops alone were applied for three consecutive days.Bacteria samples from the conjunctival sac and eyelid margins were cultivated and identified before and three days after taking antimicrobial measures,respectively.Results In the experimental group,the positive rates of the two bacteria samples were 100%(50/50)and 40%(20/50)before and 10%(5/50)and 0%(0/50)after the treatment.In the control group,the positive rates of the two bacteria samples were 97.9%(46/47)and 29.8%(14/47)before and 40.4%(19/47)and 10.6%(5/47)after the treatment.The positive rates between the two groups were not significantly different before taking antimicrobial measures(P=0.485 and 0.395),while they were significantly different after taking antimicrobial measures(P=0.001 and 0.024).Conclusion Combined application of eyelid and palpebral margin cleaning with cotton pads and antibiotic eye drops before cataract extraction imparted excellent antibacterial effects.展开更多
Purpose. This paper studies the tumour necrosis factor (TNF) levels in aqueous humor after traumatic cataract extraction and posterior chamber (PC) intraocular lens (IOL) implantation in rabb...Purpose. This paper studies the tumour necrosis factor (TNF) levels in aqueous humor after traumatic cataract extraction and posterior chamber (PC) intraocular lens (IOL) implantation in rabbits,and discusses the effect of TNF on postoperative anterior ocular inflammation. Methods. Twenty seven pigmented rabbits were divided into three groups: for the first group, the IOL were placed in the capsular bag after traumatic cataract extraction; for the second, the Extracapsular cataract extraction without IOL implantation; and for the third, the control group without surgical intervention. On the 1st, 3rd, 7th and 14th day postoperatively, aqueous humor samples were obtained. A modified double antibodies indirect sandwich ELISA was used to detected for the presence of TNF. The data were studied by means of analysis of variance in SAS software. Result. The TNF level was increased in aqueous humor and reached its maximum on the 1st postoperative days after traumatic cataract extraction and PC IOLs implantation, and the TNF levels are significantly higher (P<0 05) on the 1st, 3rd, 7th and 14th day postoperatively in traumatic cataract extraction and PC IOL implanted group than that in the non surgical intervention group and extracapsular cataract extraction group. Conclusions. The increase of TNF levels had a close relationship with presence of the IOL itself which induces the secretion of TNF. This suggested that TNF as the principal mediators of immunological and inflammatory responses, so that may play critical role in anterior ocular inflammative response after traumatic cataract extraction and IOL implantation.展开更多
Cataracts were observed in the eye lenses of a group of Wistar rats that had been injected with Na2SeO3. The trace elemental analysis of their lenses was carried out by PIXE. The results showed that the variations of ...Cataracts were observed in the eye lenses of a group of Wistar rats that had been injected with Na2SeO3. The trace elemental analysis of their lenses was carried out by PIXE. The results showed that the variations of elemental contents were different between the injected rats and the controls. The elemental concentrations, which exhibited a certain regularity in their variations,could be related to the time of formation of cataract and to its state.展开更多
Longinus's On the Sublime holds a uniquely unparalleled position in Western critical theories. By analyzing Li Bai's well-known poem Cataract on Mount Lu from the perspective of sublimity, attempt is made to a...Longinus's On the Sublime holds a uniquely unparalleled position in Western critical theories. By analyzing Li Bai's well-known poem Cataract on Mount Lu from the perspective of sublimity, attempt is made to appreciate the ancient Chinese poems by using Western critical theory and thus derive another kind of aesthetic beauty.展开更多
Intraocular ointment is conventionally placed on the eye to prevent infection after cataract surgery.The purpose of this study is to report a case and conduct a systematic review of a rare occurrence of the entry of i...Intraocular ointment is conventionally placed on the eye to prevent infection after cataract surgery.The purpose of this study is to report a case and conduct a systematic review of a rare occurrence of the entry of intraocular ointment after cataract surgery.PubMed,Scopus,Embase,CNKI,WANFANG data,China Science and Technology Journal Database and Chinese Medical Journal Full-text Database were systematically searched from their commencement to 30 th October 2023,and 19 literatures were screened out and 31 cases of intraocular ointment after surgery were collected.Among the 31 patients,the age of presentation ranged from 55 to 87 years with a median of 73,males accounted for 45.2%and females accounted for 32.3%.The length of the incision was generally 3.2 mm.Most of the patients detected ointment within 3 days post-operation and presented without complications(45.2%).The most common ocular manifestations were corneal edema,glaucoma and uveitis.Early postoperative follow-up is very important.Presence of anterior chamber ointment is a rare complication after cataract surgery,but it can lead to severe vision loss if not detected and treated on time.When patients complain of foreign body sensation in the in the eye after cataract surgery,ophthalmologists need to take a kin interest and examine the eye for early detection of ointment for appropriate intervention and prevent further complications.展开更多
著名生物学家爱德华·威尔逊(Edward O Wilson)在其名作《一致性:知识的统一》(Consilience:The Unity of Knowledge)中提出跨学科整合与协调的必要性。他将融合定义为“知识的‘跳跃式结合',即通过事实的相互关联……创造出一...著名生物学家爱德华·威尔逊(Edward O Wilson)在其名作《一致性:知识的统一》(Consilience:The Unity of Knowledge)中提出跨学科整合与协调的必要性。他将融合定义为“知识的‘跳跃式结合',即通过事实的相互关联……创造出一个共同的解释基础。”文章的假设是,与基础生物医学研究需要来源于最新技术的数据几乎一样,整合现有知识同样极其重要。这涉及到解决相互矛盾的发现、减少“信息孤岛”、以及承认复杂的必要性。我们以角膜和晶状体作为我们假设的案例研究。具体来说,在这种视角下,我们讨论蛋白质聚集、氧化损伤和纤维化方面相互矛盾和碎片化的信息。这些研究领域与眼前节研究紧密相关。我们的目的是强调威尔逊的知识融合统一的迫切需要,从而增强严谨性和可重复性,最重要的是,促进对知识的深入理解,而不只是知道。展开更多
文摘Aqueous humor provides the necessary nutrition for the lens and transports the metabolites in the eye.It was a liquid that can directly reflect the microenvironment in the eye'and it can be easily obtained during the operation.This review intended to analyze the components of aqueous humor in patients with different types of cataracts'so as to reflect the pathogenesis and development of the disease'evaluate the incidence of postoperative complications and provide reference value for the surgical design of sequential cataract surgery.The aqueous humor components of different types of cataracts showed different degrees of inflammation'oxidative stress and extracellular matrix remodeling.The biomarker of early neuropathy in diabetic cataract was neural cell adhesion molecule-1(NCAM1).Transforming growth factor-β(TGF-β)was the evaluation factor of disease development in patients with pseudoexfoliation syndrome.The relationships between postoperative complications of different types of cataracts and aqueous humor components were as follows:Macular edema after diabetic cataract surgery was associated with tumor necrosis factor-alpha;capsular contraction after high myopic cataract surgery was related to monocyte chemoattractant protein-1(MCP-1)and TGF-β2;Klotho and glutathione S-transferase P 1(GSTP1)were associated with high intraocular pressure after primary open-angle glaucoma complicated by cataract surgery;capsular contraction after retinitis pigmentosa complicated by cataract surgery was associated with matrix metalloproteinases;pro-inflammatory cytokines and fibroblast growth factor 4 in the aqueous humor of congenital cataracts were associated with posterior capsular opacification after surgery.Granulocyte colony stimulating factor 3 and MCP-1 were the main cytokines mediating the pain of the second eye in the binocular sequential cataract surgery short interval(1 wk)'while MCP-1 mediated pain in the long interval(6 wk).The second eye after binocular sequential cataract surgery had a higher level of proinflammatory factors.The components of aqueous humor in patients with different types of cataracts were related to the pathogenesis and postoperative complications of the disease.Monitoring the components of the aqueous humor could help better understand the intraocular microenvironment of different types of cataracts and provide a reference for predicting the development of the disease and implementing relevant targeted therapy.
文摘Objective To understand the perception for the use of cataract surgical services in a population acceptors and non-acceptors of cataract surgery in urban Beijing. Methods From a community-based screening program a total of 158 patients with presenting visual acuity of less than 6/18 on either eye due to age-related cataract were informed about the possibility of surgical treatment. These patients were interviewed and re-examined 36 to 46 months after initial screening. The main reasons for not accepting surgery were obtained using a questionnaire. Vision function and vision-related quality of life scores were assessed in those who received and did not receive surgery. Results At the follow-up examination 116 of the 158 patients were available and 36 （31.0%） had undergone cataract surgery. Cases who chose surgery had higher education level than those who did not seek surgery （OR=2.64, 95% CI： 1.08-6.63, P=0.02）. There were no significant differences in vision function （P=0.11） or quality of life scores （P=0.16） between the surgery group and the non-surgery group. Main reasons for not having surgery included no perceived need （50.0%）, feeling of being ＂too old＂ （19.2%）, and worry about the quality of surgery （9.6%）. Cost was seeking surgery. cited by 1 （1.9%） subject as the main reason for not
基金supported by the National Natural Science Foundation of China(81970768).
文摘Objective To explore the clinical significance of the combined application of palpebral margin cleaning and antibiotic eye drops in inhibiting bacterial growth in the palpebral margin and conjunctival sacs before cataract extraction.Methods In this study,61 patients(97 eyes)with age-related cataract who underwent phacoemulsification and intraocular lens implantation were selected,and randomly grouped.In the experimental group,the combined application of palpebral margin cleaning with cotton pads and levofloxacin eye drops was given for three days before the surgery.In the control group,levofloxacin eye drops alone were applied for three consecutive days.Bacteria samples from the conjunctival sac and eyelid margins were cultivated and identified before and three days after taking antimicrobial measures,respectively.Results In the experimental group,the positive rates of the two bacteria samples were 100%(50/50)and 40%(20/50)before and 10%(5/50)and 0%(0/50)after the treatment.In the control group,the positive rates of the two bacteria samples were 97.9%(46/47)and 29.8%(14/47)before and 40.4%(19/47)and 10.6%(5/47)after the treatment.The positive rates between the two groups were not significantly different before taking antimicrobial measures(P=0.485 and 0.395),while they were significantly different after taking antimicrobial measures(P=0.001 and 0.024).Conclusion Combined application of eyelid and palpebral margin cleaning with cotton pads and antibiotic eye drops before cataract extraction imparted excellent antibacterial effects.
文摘Purpose. This paper studies the tumour necrosis factor (TNF) levels in aqueous humor after traumatic cataract extraction and posterior chamber (PC) intraocular lens (IOL) implantation in rabbits,and discusses the effect of TNF on postoperative anterior ocular inflammation. Methods. Twenty seven pigmented rabbits were divided into three groups: for the first group, the IOL were placed in the capsular bag after traumatic cataract extraction; for the second, the Extracapsular cataract extraction without IOL implantation; and for the third, the control group without surgical intervention. On the 1st, 3rd, 7th and 14th day postoperatively, aqueous humor samples were obtained. A modified double antibodies indirect sandwich ELISA was used to detected for the presence of TNF. The data were studied by means of analysis of variance in SAS software. Result. The TNF level was increased in aqueous humor and reached its maximum on the 1st postoperative days after traumatic cataract extraction and PC IOLs implantation, and the TNF levels are significantly higher (P<0 05) on the 1st, 3rd, 7th and 14th day postoperatively in traumatic cataract extraction and PC IOL implanted group than that in the non surgical intervention group and extracapsular cataract extraction group. Conclusions. The increase of TNF levels had a close relationship with presence of the IOL itself which induces the secretion of TNF. This suggested that TNF as the principal mediators of immunological and inflammatory responses, so that may play critical role in anterior ocular inflammative response after traumatic cataract extraction and IOL implantation.
文摘Cataracts were observed in the eye lenses of a group of Wistar rats that had been injected with Na2SeO3. The trace elemental analysis of their lenses was carried out by PIXE. The results showed that the variations of elemental contents were different between the injected rats and the controls. The elemental concentrations, which exhibited a certain regularity in their variations,could be related to the time of formation of cataract and to its state.
文摘Longinus's On the Sublime holds a uniquely unparalleled position in Western critical theories. By analyzing Li Bai's well-known poem Cataract on Mount Lu from the perspective of sublimity, attempt is made to appreciate the ancient Chinese poems by using Western critical theory and thus derive another kind of aesthetic beauty.
文摘Intraocular ointment is conventionally placed on the eye to prevent infection after cataract surgery.The purpose of this study is to report a case and conduct a systematic review of a rare occurrence of the entry of intraocular ointment after cataract surgery.PubMed,Scopus,Embase,CNKI,WANFANG data,China Science and Technology Journal Database and Chinese Medical Journal Full-text Database were systematically searched from their commencement to 30 th October 2023,and 19 literatures were screened out and 31 cases of intraocular ointment after surgery were collected.Among the 31 patients,the age of presentation ranged from 55 to 87 years with a median of 73,males accounted for 45.2%and females accounted for 32.3%.The length of the incision was generally 3.2 mm.Most of the patients detected ointment within 3 days post-operation and presented without complications(45.2%).The most common ocular manifestations were corneal edema,glaucoma and uveitis.Early postoperative follow-up is very important.Presence of anterior chamber ointment is a rare complication after cataract surgery,but it can lead to severe vision loss if not detected and treated on time.When patients complain of foreign body sensation in the in the eye after cataract surgery,ophthalmologists need to take a kin interest and examine the eye for early detection of ointment for appropriate intervention and prevent further complications.
文摘著名生物学家爱德华·威尔逊(Edward O Wilson)在其名作《一致性:知识的统一》(Consilience:The Unity of Knowledge)中提出跨学科整合与协调的必要性。他将融合定义为“知识的‘跳跃式结合',即通过事实的相互关联……创造出一个共同的解释基础。”文章的假设是,与基础生物医学研究需要来源于最新技术的数据几乎一样,整合现有知识同样极其重要。这涉及到解决相互矛盾的发现、减少“信息孤岛”、以及承认复杂的必要性。我们以角膜和晶状体作为我们假设的案例研究。具体来说,在这种视角下,我们讨论蛋白质聚集、氧化损伤和纤维化方面相互矛盾和碎片化的信息。这些研究领域与眼前节研究紧密相关。我们的目的是强调威尔逊的知识融合统一的迫切需要,从而增强严谨性和可重复性,最重要的是,促进对知识的深入理解,而不只是知道。
