Non-selective beta-blocker eye drops should be used cautiously in patients with which condition?

Non-selective beta-blocker eye drops should be used cautiously in patients with which condition?

• A. Hypertension
• B. Diabetes mellitus
• C. Hyperthyroidism
• D. Asthma or COPD

Answer: (D)

Non-selective beta-blocker eye drops can affect the lungs because they block beta-2 receptors in bronchial smooth muscle. Beta-2 blockade reduces bronchodilation, so the airways can constrict more easily, which is particularly risky for people with asthma or COPD. Even though the medication is applied to the eye, it can enter the bloodstream in small amounts and reach the lungs. That's why this class of drops should be used with caution in obstructive airway diseases. In such cases, a beta-1 selective ophthalmic blocker is often preferred to minimize lung effects, or alternative treatments may be considered. Other listed conditions don’t carry the same bronchospasm risk from these drops.

Non-selective beta-blocker eye drops can affect the lungs because they block beta-2 receptors in bronchial smooth muscle. Beta-2 blockade reduces bronchodilation, so the airways can constrict more easily, which is particularly risky for people with asthma or COPD. Even though the medication is applied to the eye, it can enter the bloodstream in small amounts and reach the lungs. That's why this class of drops should be used with caution in obstructive airway diseases. In such cases, a beta-1 selective ophthalmic blocker is often preferred to minimize lung effects, or alternative treatments may be considered. Other listed conditions don’t carry the same bronchospasm risk from these drops.