Detecting Functional Changes in the Patient’s Vision: Visual Field Analysis

Introduction and Objective: Glaucoma is the leading cause of global irreversible blindness, signed by glaucomatous optic neuropathy related to visual field defect. The purpose of the study is comparing visual field defect examination using HVFA to Amsler Grid in glaucoma patient at dr. Kariadi Hospital. Methods: This is a cross-sectional study. Amsler Grid were performed to the patients who have reliable HVFA at last 6 months and presented as descriptive analytic results. Result: There were 40 eyes involved in this study from 27 patients (15 men, 12 women), 26-68 years old and visual acuity 1/60-6/6. Seventeen eyes showed visual field defect in HVFA and Amsler Grid had average MD - 24.97 dB, CDR 0.89 and RNFL thickness 51.74. We found that 11 eyes didn’t showed in both of examination had average MD -8.06, CDR 0.63 and RNFL thickness 103.23 and those parameters are significantly different to the 17 eyes before (p<0.05). Data from 12 eyes that showed visual field defect only one of examination (9 only in HVFA and 3 in Amsler Grid) didn’t show difference statistically each other. Conclusion: HFVA and Amsler Grid seemed to be comparable in detecting visual field defect in advanced glaucoma.

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Effectiveness of Ayurvedic intervention in Primary Open Angle Glaucoma (Kaphaja Adhimantha) - A Case Study

Journal of Ayurveda and Integrated Medical Sciences (JAIMS) ◽

10.21760/jaims.v3i4.13314 ◽

2018 ◽

Vol 3 (4) ◽

Author(s):

Dr. Ratheesh P. ◽

Dr. Abhayadev A. ◽

Dr. Varsha Sumedhan ◽

Dr. Meghna P P. ◽

Dr. Srinivasan M ◽

...

Keyword(s):

Visual Field ◽

Structural Changes ◽

Primary Open Angle Glaucoma ◽

Open Angle Glaucoma ◽

Treatment Protocol ◽

Clinical Findings ◽

Field Analysis ◽

Open Angle ◽

Remarkable Change ◽

Related Disorder

Glaucoma is a diverse group of disorders affecting the eye with a common characteristic potentially progressive optic neuropathy that is determined by both structural changes and functional deficit in which IOP is a key modifiable factor. In Primary Open Angle Glaucoma (POAG), IOP independent mechanisms of glaucomatous nerve damage and visual field loss with unobstructed angle of anterior chamber is observed. The patient has reported gradual diminution of peripheral aspect of visual field (Rt. eye - 6/12 and Lt. eye - 6/12 on Snellen’s distant vision chart) in both eyes for 2 years. There was marked peripheral field defect on both confrontation test and perimetry visual field analysis test. The disease shows clinical similarity with Kaphaja Adhimantha, a disease affecting the whole eye mentioned in Susruta Samhita and Ashtanga Hrudaya. It is a chronic disease comes under life style related disorder. Dukhena Roopam Pasyathi (distorted image or constricted visual field), Sirodukha (headache), Srava (watering), Kandu (itching), Pamsupoornatha (foreign body sensation), Aviladarsana (diminished vision) and Gourava (heaviness of eye and head) are the clinical findings explained in the context of Kaphaja Adhimantha. These clinical finding mentioned in classical literature shows resemblance with POAG. The meticulous deployment of kaphaja Abhisyandha- Adhimantha treatment protocol can be used to prevent the progression of ganglionic damage and preservation of eye sight. The logical interpretation on the basis of both subjective and objective clinical findings concluded the diagnosis as Kaphaja Adhimantha and treatment principle adopted was Apatharpana, Kaphahara, Abhisyandhahara and Srothovisodhana. After treatment his vision has improved as 6/6 (Rt. Eye) and 6/6 (Lt. Eye) and remarkable change in field analysis. The study discusses about the effectiveness of Ayurvedic management in POAG.

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Computerized color perimetry in multiple sclerosis

Multiple Sclerosis Journal ◽

10.1177/135245859800400207 ◽

1998 ◽

Vol 4 (2) ◽

pp. 79-84 ◽

Cited By ~ 6

Author(s):

N Accornero ◽

S Rinalduzzi ◽

M Capozza ◽

E Millefiorini ◽

G C Filligoi ◽

...

Keyword(s):

Visual Field ◽

Statistical Difference ◽

Cost Effective ◽

Quantitative Information ◽

Field Analysis ◽

Visual Field Defects ◽

Highly Sensitive ◽

The Subject ◽

Color Perimetry ◽

Field Defects

Color visual field analysis has proven highly sensitive for early visual impairments diagnosis in MS, yet it has never attained widespread popularity usually because the procedure is difficult to standardize, the devices are costly, and the test is fatiguing. We propose a computerized procedure running on standard PC, cost effective, clonable, and easy handled. Two hundred and sixty-four colored patches subtending 18 angle of vision, with selected hues and low saturation levels are sequentially and randomly displayed on gray equiluminous background of the PC screen subtending 2486408 angle of vision. The subject is requested to press a switch at the perception of the stimulus. The output provides colored maps with quantitative information. Comparison between normals and a selected population of MS patients with no actual luminance visual field defects, showed high statistical difference.

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Twenty-year outcomes in patients with newly diagnosed glaucoma: mortality and visual function

British Journal of Ophthalmology ◽

10.1136/bjophthalmol-2017-311595 ◽

2018 ◽

Vol 102 (12) ◽

pp. 1663-1666

Author(s):

Christopher King ◽

Justin C Sherwin ◽

Gokulan Ratnarajan ◽

John F Salmon

Keyword(s):

Visual Acuity ◽

Visual Field ◽

Open Angle Glaucoma ◽

Survival Curve ◽

Visual Outcome ◽

Field Analysis ◽

Time To Death ◽

Kaplan Meier ◽

Two Stages

Background/aimsTo determine the mortality within 20 years of diagnosis of chronic open-angle glaucoma (COAG) and visual acuity and visual field progression of a cohort followed for 20 years.MethodsTwenty years following the diagnosis of COAG in 68 of 436 (16%) patients seen in a glaucoma case-finding clinic, visual and mortality outcomes were audited from medical records. Causes of death were obtained from general practitioner records and death certificates. Probability of death was calculated using a Kaplan-Meier survival curve. The visual field of each eye of survivors was graded using a nine-stage severity scale. Visual outcome was analysed at the 20-year follow-up visit.ResultsFrom 68, 14 (21%) were lost to follow-up. In the remaining 54, 20 (37%) were alive 20 years after diagnosis. Of 63% who died, mean age of death was 84 years, most commonly due to vascular disease. Mean age at presentation of those who died was 73.7 years versus 63.2 years for survivors (P=0.001). The median time to death was 16 years. On visual field analysis, nearly half (48.9%) of eyes did not deteriorate, but 28.3% eyes deteriorated by more than two stages. Those who died had worse final visual acuity than survivors (P<0.001). Three who died were registered severely visually impaired mainly from macular disease, but no survivors were registered (P<0.001).ConclusionIn this cohort, approximately two-thirds of patients with glaucoma died within 20 years of diagnosis. In most older patients with glaucoma, the overall goal of preventing visual handicap and blindness is achievable 20 years after diagnosis.

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Interpretation of Single Field Reports: Humphrey Single Visual Field Analysis in Glaucoma

Practical Perimetry ◽

10.5005/jp/books/12888_4 ◽

2016 ◽

pp. 27-27

Author(s):

Oscar Albis-Donado ◽

Nadia Rios-Acosta

Keyword(s):

Visual Field ◽

Field Analysis ◽

Single Field

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Abnormal Regional Spontaneous Neural Activity in Nonarteritic Anterior Ischemic Optic Neuropathy: A Resting-State Functional MRI Study

Neural Plasticity ◽

10.1155/2020/8826787 ◽

2020 ◽

Vol 2020 ◽

pp. 1-9

Author(s):

Pengde Guo ◽

Pengbo Zhao ◽

Han Lv ◽

Yan Su ◽

Ming Liu ◽

...

Keyword(s):

Intraocular Pressure ◽

Visual Field ◽

Optic Neuropathy ◽

Roc Curve ◽

Resting State ◽

Field Analysis ◽

Ischemic Optic Neuropathy ◽

Superior Parietal Lobule ◽

Parietal Lobule ◽

Left Middle

Objective. To explore altered regional neuronal activity in patients with nonarteritic anterior ischemic optic neuropathy (NAION) and its correlation with clinical performances using the regional homogeneity (ReHo) method, which is based on resting-state functional magnetic resonance imaging (fMRI). Method. Thirty-one patients with NAION (20 males, 11 females) and 31 age- and sex-matched normal controls (NCs) (20 males, 11 females) were enrolled in the study. All patients underwent ophthalmic examination, including eyesight, intraocular pressure measurement, optimal coherence tomography (OCT), visual field analysis, and fMRI scans. After ReHo was calculated, we investigated group differences in results between the patients and NCs. We analyzed the relationship between ReHo values for different brain regions in patients with NAION and intraocular pressure, visual field analysis, and OCT. A receiver operating characteristic (ROC) curve was used to assess the diagnostic ability of the ReHo method. Results. Compared with NCs, patients with NAION exhibited higher ReHo values in the left middle frontal gyrus, left middle cingulate gyrus, left superior temporal gyrus, and left inferior parietal lobule. Additionally, they exhibited lower ReHo values in the right lingual gyrus, left putamen/lentiform nucleus, and left superior parietal lobule. ReHo values in the left superior parietal lobule were negatively correlated with right retinal nerve fiber layer values (r=−0.462, P=0.01). The area under the ROC curve for each brain region indicated that the ReHo method is a credible means of diagnosing patient with NAION. Conclusion. NAION was primarily associated with dysfunction in the default mode network, which may reflect its underlying neural mechanisms.

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