beta blockers glaucoma

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Whats the difference between selective and non selective beta blockers for glaucoma?

Systemic effects

Lung
Beta blocker drugs are effective agents to lower the internal eye pressure in treating glaucoma. There is some systemic absorption and in sensitive individuals non-selective blockers can lower the maximum heart rate, cause lung spasms and elevate the blood sugar. Selective blockers have less tendency to do these but if you are taking these agents, report changes to your ophthalmologist.
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Dr. Bud Kurwa answered:

What is the difference between selective and non-selective beta blockers for glaucoma treatment?

One is more safe

Glaucoma
Beta blockers can either block Beta1 or Beta2 receptors. Beta 1 receptors are in the heart and blocking them can cause the heart to slow down causing tiredness, irregular heart beat and shortness of breath....one of the drawbacks of Timolol. Selective beta blockers such as Betoptic are supposed to have less of an effect of this type but are best avoided if a patient is sensitive to beta blockers
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Dr. Tim Conrad answered:

Need advice on what is the the difference between selective and non selective beta blockers for glaucoma treatment?

Non-selective

Glaucoma
agents work better to lower pressure. If there is uncontrolled asthma or COPD, they should not be used. Selective agents were developed to reduce side effects, but they are rarely used today. This is old school glaucoma treatment.
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Dr. Richard Hector answered:

Which one is better to lower ocular pressure in open angle glaucoma. 5 mg Amlodipine (Calcium Channel Blocker) or 5 mg Bystoilc ( Beta Blocker).?

Both/neither

Norvasc
they both "help" but neither is considered a primary treatment for glaucoma
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Since Bystoilc is selective Beta Blocker(works on the heart only), can it still lower ocular pressure in glaucoma or does NON selective BB is better ?

Yes

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Systemic beta blockers(BB) can lower IOP, but not as effectively as when a topical ophthalmic preparation is used. Selective vs non- selective BBs very in their potency at blocking beta receptors in the eye & heart. Non-selective BBs block both types of receptors(B1 & B2) and lower IOP more than selective type( B1). The later type is thought to be a safer medication with less pulmonary side effect
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Define glaucoma?

Ongoing nerve damage

Glaucoma
group of eye diseases characterized by progressive damage to the optic nerve, typically with an eye pressure too high for the given eye, leading to slow visual loss over time. at end stage disease, all patients have a "cupped" out nerve due to degeneration of the retinal nerve fiber layer with corresponding loss of visual field.
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What is glaucoma?

Eye disease

Glaucoma
there are many types of glaucoma, but the final common pathway is the progressive loss of ganglion cells (faster than age-related loss) and resultant increase in "cupping" of the optic nerve, leading to loss of vision. the cause of glaucoma can be multifactorial and is typically divided into mechanical and vascular issues
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Does glaucoma hurt?

It can

Glaucoma
There are 2 main types of glaucoma, closed-angle (acute) and open-angle (chronic). Acute glaucoma is less common, but can present with sudden eye pain due to an increase in intraocular pressure. Chronic glaucoma commonly does not present with eye pain as the process of the disease is more gradual. Be sure to see your doctor if you are experiencing any eye symptoms or are concerned about glaucoma.
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Is glaucoma genetic?

Multifactorial

Aging
some glaucoma types have been mapped to specific genes through genetic linkage analysis and genome wide association studies, but this is a small percentage of glaucoma cases. glaucoma is likely an interplay of genetic susceptibility as well as aging and other factors especially since there are many types.
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