Morphologic changes in the anterior chamber in patients with cortical or nuclear age-related cataract

2011 ◽  
Vol 37 (1) ◽  
pp. 77-82 ◽  
Author(s):  
Yi Chen ◽  
Yong-zhen Bao ◽  
Xue-ting Pei
Author(s):  
Mike Kliffen ◽  
Theo L. van der Schaft ◽  
Cornelia M. Mooy ◽  
Paulus T.V.M. de Jong

1996 ◽  
Vol 62 (3) ◽  
pp. 237-252 ◽  
Author(s):  
K.J. AL-GHOUL ◽  
C.W. LANE ◽  
V.L. TAYLOR ◽  
W.C. FOWLE ◽  
M.J. COSTELLO
Keyword(s):  

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Nicholas P. Bell ◽  
Kundandeep S. Nagi ◽  
Ricardo J. Cumba ◽  
Alice Z. Chuang ◽  
David A. Lee ◽  
...  

Purpose. To investigate age- and position-related changes of anterior chamber angle anatomy in normal, healthy eyes. Patients and Methods. Thirty subjects were separated into a younger and older cohort. The superior and inferior anterior chamber angles of the eyes were measured in supine and sitting positions by ultrasound biomicroscopy (UBM) with bag/balloon technology. Statistical analysis was used to evaluate positional and age-related changes in angle morphology. Results. In the younger cohort, no location or positional differences in angle anatomy were observed. In the older cohort, the inferior quadrant was significantly narrower than the superior quadrant (P=0.0186) in the supine position. This cohort also demonstrated an interaction effect between position and location. In the older cohort, the angle was deeper inferiorly while the subject was sitting but was deeper superiorly while the subject was supine. Conclusion. Comparison of positional variations in anterior chamber angle anatomy as measured by UBM has recently become possible. This study found that age-related positional changes in the anterior chamber angle anatomy exist in normal healthy eyes.


2016 ◽  
Vol 10 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Sukjin Kim ◽  
Jeongjae Oh ◽  
Kiseok Kim

The authors present a case of morphologic changes of drusen and drusenoid pigment epithelial detachment (DPED) after treating choroidal neovascularization (CNV) using ranibizumab in age-related macular degeneration (AMD). A 71-year-old woman has noticed mild visual acuity deterioration in the right eye for several months. She was presented with some drusen and DPED associated with CNV. This patient was given intravitreal injection of 0.5 mg of ranibizumab five times at monthly intervals for treating CNV. DPED in the temporal and drusen in the superior to macula were diminished, which continued up to 2 months. Intravitreal ranibizumab injection may have influenced with diminishment of drusen and DPED. After 2 months, CNV was recurred.


2019 ◽  
Author(s):  
Man Hu ◽  
Qian Zheng ◽  
Zhangliang Li ◽  
Pingjun Chang ◽  
Yun-e Zhao

Abstract Background To assess the changes of anterior chamber angle in patients with shallow anterior chamber and normal anterior chamber after phacoemulsification and intraocular lens implantation (IOL) using anterior segment swept-source optical coherence tomography (AS-SS-OCT). Methods This was a prospective case control study; 60 eyes of 60 patients who underwent cataract surgery. Based on anterior chamber depth (ACD) and gonioscopy findings, the eyes were classified into two groups, shallow anterior chamber group (30 eyes) and normal anterior chamber group (30 eyes). AS-SS-OCT was used to measure ACD and angle parameters angle opening distance (AOD), angle recess area (ARA), trabecular iris space area(TISA), and trabecular iris angle (TIA). Serial changes in each group were measured before and 3 months after phacoemulsification and IOL, and the differences between the two groups were compared. Results All angle parameters including ACD, AOD, ARA, TISA, and TIA in both groups at 3 months after cataract surgery were significantly different from the preoperative values (p<0.01). In addition, we found significant differences of all angle parameters between groups of shallow anterior chamber (SAC) and normal anterior chamber (NAC) (All P< 0.05). Besides, the TISA750 in superior quadrant and anterior chamber volume (ACV) were significantly smaller in the group of SAC than those in the group of NAC (P = 0.041 and 0.002, respectively). Conclusions The parameters of anterior chamber increased significantly in both two groups but not increase to the same extent 3 months after phacoemulsification. Iris thickening may also be one of the narrow angle factors,not just age-related lens thickening.


Author(s):  
И. К. Намазова ◽  
Г. Т. Саилова ◽  
С. Р. Меджидова ◽  
А. Р. Салманова

Исследованы изменения провоспалительных цитокинов - IL -1βи TNF -α во влаге передней камеры и в сыворотке крови до хирургического лечения катаракты у 81 пациента (на 81 глазу) с катарактой. Из них у 46 пациентов был верифицирован диагноз псевдоэксфолиативного синдрома (ПЭС), оценена степень выраженности дистрофических изменений, отложений псевдоэксфолиативного материала (основная группа). 35 пациентов без ПЭС были включены в контрольную группу. По совокупной оценке результатов биомикроскопии и ультразвуковой биомикроскопии структур глаза было выделено три стадии развития ПЭС: I - 11 (23,91%) глаз (на одном глазу у 11 пациентов, так как к операции готовился один глаз), II - 20 (43,48%), III - 15 (32,61%). Воспалительные осложнения после неосложненной хирургической терапии катаракты имелись у 17,39% пациентов на глазах с ПЭС, из них у 13,04% - при II стадии ПЭС, у 4,35% - при III стадии ПЭС. На глазах пациентов с ПЭС I стадии и в контрольной группе осложнений не было. Результаты исследования IL -1β, TNF -α в сыворотке крови, во влаге передней камеры выявили значимые различия показателей у пациентов с ПЭС в сравнении с лицами без него в зависимости от стадии. У пациентов с ПЭС соматические патологии выявлены в 2 раза чаще, а повышенные концентрации IL -1β, TNF -α при ПЭС подтверждают мнение, что его следует рассматривать как возрастную патологию органа зрения. Таким образом, снижение с возрастом компенсаторных возможностей организма, набор хронической возрастной патологии формируют возрастные изменения структур, в том числе патогенетические механизмы ПЭС, фон хирургического лечения пациентов старшего возраста, в известной мере предопределяя характер и особенности послеоперационного периода, возможных осложнений. There have been studied changes of proinfl ammatory cytokines, IL -1β and TNF -α, in anterior chamber aqueous humor and in blood serum before cataract surgery in 81 patients with cataract. Of these, 46 patients had verified diagnosis of pseudoexfoliative syndrome (PEХ) of varying degree of manifestation of dystrophic changes and deposits of pseudoexfoliative material (main group). In 35 patients, PES (comparison group) has not been detected. 2-stage biomicroscopy (with a narrow pupil, after tonometry with mydriasis) and ultrasound biomicroscopy (UBM) have been conducted. According to the results of biomicroscopy and UBM structures of the eye, 3 stages of development of PEX have been identified: I - 11 (23,91 %), II - 20 (43,48 %), III - 15 (32,61 %). Inflammatory complications after cataract surgery have been in 17,39 % of eyes with PEХ, of which PEX Stage II in 13,04 % and PEХ Stage III in 4,35 %. There have been no complications in the eyes with PEX Stage I and without PEX. In comparison with patients without PEX, significant differences in the indicators of IL -1β and TNF -α both in the blood serum and in the aqueous humor of the anterior chamber of patients with PEX have been found. In particular, there have been confi rmed significant differences of indicators depending on the stage of development of changes during PEX. At the same time, higher concentrations of IL -1β and TNF -α during PEX, as well as somatic pathologies in patients with PES occurring 2 times more often, confirm the opinion that PEX should be considered as pathology of the organ of vision. Thus, decrease in the compensatory abilities of the body with age and a set of chronic age-related pathology form the pathogenetic mechanisms of PEX, including age-related changes in structures and surgery background in older patients, to a certain extent predetermining the nature and features of the postoperative period and possible complications.


2020 ◽  
Vol 40 (5) ◽  
pp. 632-649 ◽  
Author(s):  
Jack Phu ◽  
Janelle Tong ◽  
Barbara Zangerl ◽  
Janet Ly Le ◽  
Michael Kalloniatis

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