A Five-Year Follow-Up of Subjects with Intra-Ocular Pressure of 22-30 mm Hg Without Anomalies of Optic Nerve and Visual Field Typical for Glaucoma at First Investigation

1971 ◽  
Vol 162 (4-5) ◽  
pp. 289-295 ◽  
Author(s):  
J. Schappert-Kimmijser
2021 ◽  
Vol 7 (2) ◽  
pp. 195-199
Author(s):  
Helen Rosita J ◽  
Gnanaselvan J ◽  
Amudhavadivu S ◽  
Anna Kurian Mullasseril

Glaucoma is the leading cause of irreversible blindness, one of the risk factor recognised being high myopia. Intra ocular pressure may be normal in myopic patients, with optic nerve head glaucoma characteristics. Eye ball elongation and optic nerve head tilting may be present in patients with high myopia that will represent field defects mimicking glaucoma. Treating patients with myopia having suspected aspects of glaucoma may be a challenge but even more challenging is the diagnosis of glaucoma in myopic patients.: To evaluate the association of glaucoma features with myopia. To create the awareness regarding the long term follow up.: Patients in the age group of 15 to 45 years who had attended our institution over a period of one year who fulfilled the inclusion and exclusion criteria were subjected for this study. Fifty four patients who were diagnosed to have moderate or high degree myopia were selected for this analytical study. They were subjected to vision, ocular examination, tonometry and results obtained were analysed.: In our study moderate myopes constituted 55.5% and high myopes were 44.5%. The mean Intra ocular pressure and the mean corrected Intra ocular pressure in high myopes were observed to be higher than in moderate myopia. It was observed that higher prevalence of glaucoma was observed in high myopes.: There is a clinically as well as statistically significant difference between mean Intra ocular pressure and mean corrected Intra ocular pressure. So mean corrected Intra ocular pressure should be measured .From our study, there is a clear indication that there is increased prevalence of glaucoma in high myopes.


1964 ◽  
Vol 2 (5) ◽  
pp. 18-19

In chronic simple (open-angle) glaucoma loss of visual field may be prevented by improving the outflow of aqueous humour from the eye and thus lowering the raised intra-ocular pressure. This is achieved mainly by miotic drugs which constrict the pupil and make the ciliary muscle contract. These either mimic acetylcholine, acting directly on the ciliary muscle, or inhibit cholinesterase and so allow acetylcholine to accumulate.


1966 ◽  
Vol 4 (4) ◽  
pp. 14-15

The medical control of chronic simple (open-angle) glaucoma is becoming more popular, and newer and more potent drugs have been produced to reduce the intra-ocular pressure. The anticholinesterases are one such group of drugs; they potentiate acetylcholine and increase aqueous outflow from the eye, perhaps by stimulating the ciliary muscle which pulls on the scleral spur, or by direct action on parasympathetic end-organs in the trabecular meshwork. The effect lasts many hours or even several days, thus achieving the uninterrupted control of intra-ocular pressure essential to prevent further loss of visual field.


2019 ◽  
Vol 11 (1) ◽  
pp. 33-39
Author(s):  
Pratibha Lama Joshi ◽  
Bhaskar Jha ◽  
Indira Paudyal ◽  
Suman Shamsher Thapa

Objective: To find out the most common referral parameter among the glaucoma suspects patients from general eye clinic and to establish glaucoma diagnosis. Methods: This study is a retrospective cohort hospital based study. Two hundred patients from January to February 2017 sent to glaucoma clinic as glaucoma suspects were re-evaluated meticulously by glaucoma specialist and were diagnosed as glaucoma, non glaucoma, suspects and ocular hypertension. Results: Out of the 200 patients referred to glaucoma clinic as glaucoma suspects only19% were diagnosed to have glaucoma. The mean age at which glaucoma diagnosed was 55.29(14.4) compared to 41.6(15.1) in normal group. One hundred and sixty five patients were referred on the basis of suspicious optic nerve head, among them 14.5% (24/165) had glaucoma. This study showed that, open angle glaucoma (OAG) 28.9% was the most common type of total glaucoma diagnosed. The mean vertical cup discratio in the OAG group was 0.69±0.1 (0.4 -0.9) compared to 0.56 ± 0.11((0.2-0.8)(p=0.00) normal. The mean intra ocular pressure (IOP) in OAG group was 19.73 ±4.95(11-32) mmHg compared to 16.74± 3.36(10-30) mmHg (p=0.00) in normal group. The mean central corneal thickness (CCT) in OAG group was 533.05 ± 31.24μm (467-606) compared to normal was 534.9±33.6 μm (432-696) (p=0.670). Conclusions: Suspicious optic nerve head is the most common referral parameter between the general ophthalmologist and residents, but this study shows only few of them were diagnosed with glaucoma. This gives us a clue that the ophthalmologists and residents are to be trained better to help them identify the signs of glaucoma on the optic nerve head beside its size, which will reduce unnecessary burden to the resources of patients and hospital.


Author(s):  
Ayoub George ◽  
Luo Yanan ◽  
Man-Kit Lam Dominic

Normal tension glaucoma is the most common type of glaucoma among people of east Asian countries. While a significant minority of cases of normal tension glaucoma respond to drugs or surgical procedures that lower intra-ocular pressure, most cases continue to progress, resulting in a continuing loss of visual field and blindness. We here review the current state of knowledge of this debilitating disease, and evaluate a promising pilot study showing a potential route to evaluate normal tension glaucoma and to effectively treat it with a vitamin and mineral supplement.


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