Comparison of the Scanning Peripheral Anterior Chamber Depth Analyzer and the Modified van Herick Grading System in the Assessment of Angle Closure

Ophthalmology ◽  
2007 ◽  
Vol 114 (3) ◽  
pp. 501-506 ◽  
Author(s):  
Mani Baskaran ◽  
Francis T.S. Oen ◽  
Yiong-Huak Chan ◽  
Sek-Tien Hoh ◽  
Ching-Lin Ho ◽  
...  
Keyword(s):  
Anterior Chamber ◽  
Anterior Chamber Depth ◽  
Angle Closure ◽  
Grading System

scholarly journals Polypharmacy-associated potential contraindications of drug prescriptions in patients with primary angle closure disease in a real-world setting

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Fumiaki Tanaka ◽  
Naoki Shibatani ◽  
Kazumi Fujita ◽  
Hiroaki Ikesue ◽  
Satoru Yoshimizu ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Anterior Chamber ◽  
Anterior Chamber Depth ◽  
Japanese Patients ◽  
Median Number ◽  
Angle Closure ◽  
Primary Angle Closure ◽  
Primary Angle Closure Glaucoma ◽  
Number Of Patients ◽  
Multiple Drugs

Abstract Background Primary angle closure disease (PACD) is a type of glaucoma in which the intraocular pressure (IOP) is increased because of the blockage of the anterior chamber angle. Medications contraindicated for patients with PACD, such as anticholinergics, cause mydriasis, and can elevate IOP. However, anticholinergics are currently contraindicated only for primary angle closure glaucoma (PACG) in Japanese package inserts. In this study, we investigated the prescription status of medications contraindicated for PACD, such as anticholinergics, in patients with PACD scheduled for eye surgeries. Methods Forty-three Japanese patients diagnosed with PACD at Kobe City Eye Hospital, Japan, and scheduled hospitalization for eye surgeries between December 2017 and July 2018, were included. Data, including sex, age, diagnosis, IOP, anterior chamber depth, and patients’ regular medications prior to hospitalization, were collected for each patient from the electronic medical records. Results The number of patients with chronic primary angle closure (CPAC) and acute primary angle closure (APAC) was 35 (81.4%) and 8 (18.6%), respectively. Among all the 43 patients with PACD, 8 (18.6%) received 15 medications that are potentially contraindicated for PACD by non-ophthalmologist. According to medication categories, benzodiazepine hypnotics were the most commonly prescribed. Among the 8 patients with APAC, 2 (25.0%) had routinely received medications contraindicated for PACD. The median number of all kinds of prescriptions on the day of hospitalization was significantly higher for patients who received medications contraindicated for PACD than for those who did not receive them (p = 0.010). Conclusions About 20% of patients with PACD received medications potentially contraindicated for PACD, such as anticholinergics. Attention should be paid to patients prescribed multiple drugs for adverse events, such as increase in intraocular pressure.

scholarly journals ABCC5, a Gene That Influences the Anterior Chamber Depth, Is Associated with Primary Angle Closure Glaucoma

PLoS Genetics ◽  
2014 ◽  
Vol 10 (3) ◽  
pp. e1004089 ◽  
Author(s):  
Monisha E. Nongpiur ◽  
Chiea Chuen Khor ◽  
Hongyan Jia ◽  
Belinda K. Cornes ◽  
Li-Jia Chen ◽  
...  
Keyword(s):  
Anterior Chamber ◽  
Anterior Chamber Depth ◽  
Angle Closure Glaucoma ◽  
Angle Closure ◽  
Primary Angle Closure ◽  
Primary Angle Closure Glaucoma

scholarly journals A Case of Repeating Transient Increase in Intraocular Pressure by Instability of an Intraocular Lens Implanted in the Capsular Bag

2020 ◽  
Vol 11 (1) ◽  
pp. 60-67
Author(s):  
Yukihisa  Takada ◽  
Takayoshi Sumioka ◽  
Nobuyuki Ishikawa ◽  
Shingo Yasuda ◽  
Ryoko Komori ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Anterior Chamber ◽  
Intraocular Lens ◽  
Anterior Chamber Depth ◽  
Acute Angle ◽  
University Hospital ◽  
Angle Closure ◽  
Light Reaction ◽  
Narrow Angle ◽  
Medical University

We observed repeated episodes of rapid increases in intraocular pressure (IOP) considered to be caused by an in-the-bag intraocular lens (IOL) instability in a patient with an implanted IOL. As acute glaucoma attack-like increase in IOP was noted in the left eye on November 8, she was admitted to Wakayama Medical University Hospital. The findings at the first examination included an IOP of 62 mm Hg, instability of a PMMA one-piece IOL, shallow anterior chamber, narrow angle, moderate mydriasis, and loss of pupillary light reaction in the left avitreous eye. On November 15, a 6-mm Hg increase in IOP was observed during 60-min dark room prone provocative testing. After the first examination, the patient perceived pain and reduced visual acuity of the left eye and emergently consulted our hospital twice. Despite miosis, normalization of the anterior chamber depth and IOP with widening of the angle were achieved by resting in the supine position. These episodes were thought to be caused by instability and anterior shift of the IOL. On January 17, 2018, suture fixation of the in-the-bag IOL was performed. The IOL was fixed by transscleral suturing of the bilateral supporting parts to the sclera. Recurrence of sudden ophthalmalgia, instability of the in-the-bag IOL, and an increase in IOP have not been observed for 1 year after surgical treatment. Instability of an in-the-bag IOL caused repeated acute angle-closure glaucoma-like attacks. The situation was well treated by suturing and fixing the haptics of IOL to the sclera.

Heritability of Anterior Chamber Depth as an Intermediate Phenotype of Angle-Closure in Chinese: The Guangzhou Twin Eye Study

2008 ◽  
Vol 49 (1) ◽  
pp. 81 ◽  
Author(s):  
Mingguang He ◽  
Dandan Wang ◽  
Yingfeng Zheng ◽  
Jian Zhang ◽  
Qiuxia Yin ◽  
...  
Keyword(s):  
Anterior Chamber ◽  
Anterior Chamber Depth ◽  
Intermediate Phenotype ◽  
Angle Closure

scholarly journals Repeatability and reproducibility of axial length, anterior chamber depth and crystalline lens thickness measurements using the Nidek US-500 Echoscan

2015 ◽  
Vol 74 (1) ◽  
Author(s):  
Khathutshelo P. Mashige
Keyword(s):  
Anterior Chamber ◽  
Axial Length ◽  
Repeated Measures ◽  
Anterior Chamber Depth ◽  
Correlation Coefficients ◽  
Crystalline Lens ◽  
Angle Closure ◽  
Lens Thickness ◽  
Primary Angle Closure Glaucoma ◽  
The Right

Aim: The reliability of an instrument used to collect data for clinical and research purposes is greatly important, especially when it is used to determine changes in measured ocular parameters over time. The purpose of this study was to determine the intra-session repeatability and inter-session reproducibility of axial length (AL), anterior chamber depth (ACD) and crystalline lens thickness (LT) measurements using the Nidek US-500 Echoscan.Method: Fifty successive automatic measurements of the above parameters were taken on the right eyes only of 12 healthy subjects aged 23–44 years old, followed by similar repeated measures after 1 week. Sample standard deviations (s.d.), precision (P) and coefficient of repeatability (COR) were calculated to determine intra-session repeatability. Coefficient of reproducibility (CRP), Bland and Altman plots, concordance correlation coefficients (CCC) and paired t-tests that compared measurements obtained in the first and second sessions, were used to determine inter-session reproducibility.Results: Both the intra-session repeatability and inter-session reproducibility were within acceptable limits for the three variables assessed.Conclusion: The study showed that the Nidek US-500 Echoscan provides accurate, repeatable and reproducible measurements of AL, ACD and LT in healthy eyes. This finding will be of interest to optometrists and ophthalmologists who measure these parameters when diagnosing, managing and investigating conditions such as primary angle-closure glaucoma and keratoconus.

scholarly journals Evaluation of Ocular Anterior Chamber Depth and Body Mass Index in Normal Blacks in a Nigerian City

2019 ◽  
pp. 1-8
Author(s):  
I. N. Aprioku ◽  
C. S. Ejimadu
Keyword(s):  
Body Mass Index ◽  
Anterior Chamber ◽  
Body Mass ◽  
Normal Population ◽  
Anterior Chamber Depth ◽  
Angle Closure ◽  
P Value ◽  
Multi Stage ◽  
Significant Difference ◽  
Lens Power

Aim: To evaluate ocular anterior chamber depth (ACD) and body mass index (BMI) in a normal population in Port Harcourt City Local Government Area (LGA), with a view to determine formulae in estimating intraocular lens power for cataract surgeries and possible association with angle closure glaucoma and other ocular pathological conditions.            Methods: This is a multi-stage study with inclusion criteria of Visual Acuity > 6/18, age greater than 18 years with no history of past ocular surgeries or trauma. Data obtained through a structured proforma included age, sex, tribe, occupation and level of education. Body Mass Index (BMI) was measured using a standard height and weight automated scale (SECA 769,220). Comprehensive ocular examination done and Anterior Chamber Depth (ACD) measured using Amplitude (A) scan ultrasonography (SONOMED PACSCAN 300AP). Data was analyzed using SPSS (Version 17), and p value was set at ≤ 0.05. Results: Four hundred and sixty six (466) subjects participated in the study made up of two hundred and twelve (212) males (45.5%) and two hundred and fifty four (254) females (54.5%) with M: F ratio of 1:1.2. The age range was 18-92 years and mean age of the subjects studied 43.0±14.2 years. Findings revealed mean ACD and Body Mass Index to be 3.1±0.5 mm and 26.9±6.2 kg/m2 respectively. The mean ACD was greater in males than females. There was a statistically significant relationship between age and ACD. Obesity was found to be higher in females (n=97; 78.2%) compared to the males among those with BMI >30Kg/m2 and this was found to be statistically significant (p=0.0001). A larger proportion of subjects with normal BMI and overweight BMI 25-29.5 Kg/m2 were males. There was a statistically significant difference in the ACD values between genders among those overweight (BMI 25- 29.5 Kg/m2) and the obese (BMI >30 Kg/m2). Conclusion: There was a statistically significant difference in the ACD values between genders among those overweight.

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