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HA2 Eye Drop

Homatropine (2% w/v)

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HA2 Eye Drop is used before eye examinations and to treat an eye condition called uveitis. It acts by enlarging the pupil of the eyes and helps the doctor visualize the eye more closely. It reduces redness and swelling in the eyes after cataract surgery.

Written By Dr. Subita Alagh, BDS,
Reviewed By Dr. Sachin Gupta, MD Pharmacology, MBBS,
Last updated on 29 Apr 2026 | 01:01 PM (IST)

₹29.7

₹33.6

12% off

5 ml Eye Drop

Get by 3pm, Tomorrow

Gurgaon

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General Information

Contains

Homatropine (2% w/v)

Marketer

Optho Life Sciences Pvt Ltd

Storage

Store below 25°C

The content is shown in English

Product introduction

HA2 Eye Drop is for external use only. Use it in the dose and duration as advised by the doctor. Refrain from touching the tip of the dropper to any surface to avoid contaminating the eye drops.

There is limited data available regarding the common side effects of HA2 Eye Drop. However, it may cause burning or stinging sensations in some people. These are usually mild and resolve on their own. Let your doctor know if you experience any symptoms that bother you or worsen while using the medication.

Using HA2 Eye Drop can make your eyes more sensitive to light. Thus, wear sunglasses to protect your eyes from sunlight and other bright lights. Avoid driving right after using this medicine, as it may cause blurred vision.

Uses of HA Eye Drop

Eye examination
Treatment of Uveitis

Benefits of HA Eye Drop

Eye examination
HA2 Eye Drop is used to temporarily dilate the pupil (mydriasis) and relax the eye’s focusing muscles (cycloplegia) during eye examinations. This allows a clearer view of the internal structures of the eye and helps in accurate assessment of refractive errors. The makes it easier for the doctor to examine the retina and other parts of the eye properly. This helps support diagnosis during routine or detailed eye evaluations.

Treatment of Uveitis
HA2 Eye Drop helps relieve symptoms of uveitis by relaxing the muscles inside the eye and dilating the pupil. This reduces pain caused by ciliary muscle spasm and prevents the formation of adhesions between the iris and lens (synechiae). It also helps stabilize the eye environment and supports healing. As a result, it reduces discomfort and lowers the risk of complications associated with inflammation.

Side effects of HA Eye Drop

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of HA

Limited data available

How to use HA Eye Drop

This medicine is for external use only. Use it in the dose and duration as advised by your doctor. Check the label for directions before use. Hold the dropper close to the eye without touching it. Gently squeeze the dropper and place the medicine inside the lower eyelid. Wipe off the extra liquid.

How HA Eye Drop works

HA2 Eye Drop works by relaxing certain muscles in the eye. This helps widen the pupil and temporarily reduces the eye’s focusing ability, making it easier for doctors to examine the inside of the eye. In uveitis, it helps reduce eye pain and discomfort by relaxing the eye muscles and prevents the inner parts of the eye from sticking together during inflammation.

All substitutes for HA2 Eye Drop

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

It is also used to relieve eye inflammation (redness and swelling) and infection.
Apply pressure on the corner of the eye (close to the nose) for about 1 minute, immediately after instilling the drop.
Wait for at least 5-10 minutes before delivering the next medication in the same eye to avoid dilution.
Stinging sensation may occur for 1-2 mins. Notify your doctor if it persists for longer.
Make sure to use within 4 weeks of opening the bottle.

Safety advice

Alcohol

No interaction found/established

Pregnancy

CONSULT YOUR DOCTOR

The safety of HA2 Eye Drop during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.

Breast feeding

CONSULT YOUR DOCTOR

Information regarding the use of HA2 Eye Drop during breastfeeding is not available. Please consult your doctor.
To reduce the amount of HA2 Eye Drop that reaches the breastmilk, place pressure over the corner of the eye for 1 minute or more, then remove the excess solution with an absorbent tissue.

Driving

UNSAFE

HA2 Eye Drop may cause temporary visual disturbances. Do not drive until your vision is clear.

Kidney

No interaction found/established

Liver

No interaction found/established

Interaction with drugs

Taking HA with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Moderate

Trihexyphenidyl (Injection Route)

Talk to your doctor if you notice any unusual symptoms.

Moderate

Trihexyphenidyl (Oral Route)

Talk to your doctor if you notice any unusual symptoms.

Moderate

Procyclidine (Oral Route)

Talk to your doctor if you notice any unusual symptoms.

Frequently asked questions

What is HA2 Eye Drop used for?

HA2 Eye Drop is used to temporarily enlarge the pupil and relax the eye muscles. It is commonly prescribed for eye examinations, to reduce eye pain from inflammation, or to help the eye heal after surgery or injury.

Who should not use HA2 Eye Drop?

Individuals should not use HA2 Eye Drop if they have glaucoma, especially narrow-angle glaucoma, or if they are allergic to HA2 Eye Drop or similar medicines.

Can HA2 Eye Drop increase eye pressure?

Yes, HA2 Eye Drop may increase eye pressure, especially in people with glaucoma or those at risk for it. Your doctor may monitor your eye pressure during treatment.

Can I drive after using HA2 Eye Drop?

No, you should avoid driving or operating machinery immediately after using HA2 Eye Drop, as it can cause blurred vision and increased sensitivity to light.

Can HA2 Eye Drop cause allergic reactions?

Yes, although they are rare, some people may experience allergic reactions with HA2 Eye Drop use, such as swelling, redness, itching, or rash around the eyes. If this happens, stop using HA2 Eye Drop and seek medical advice immediately.

Can HA2 Eye Drop be used in both eyes?

HA2 Eye Drop can be used in both eyes if prescribed by your doctor; however, it is often applied only to the affected eye depending on the condition being treated.

How long does the effect of HA2 Eye Drop last?

The pupil-widening effect of HA2 Eye Drop can last from one to three days, and sometimes longer. Your vision may remain blurred during this period, so take precautions.

Fact Box

Chemical Class

Tropane Alkaloid Derivative

Habit Forming

Therapeutic Class

OPHTHAL

Action Class

Mydriatic and Cycloplegic Anticholinergics

References

Brown JH, Laiken N. Muscarinic Receptor Agonists and Antagonists. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. 12th ed. New York, New York: McGraw-Hill Medical; 2011. p. 233.
Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 657-58.
Homatropine hydrobromide solution. Aquebogue, NY: Altaire Pharmaceuticals, Inc.; 2022 [Accessed 12 Feb. 2026] (online). Available from:

User feedback

Patients taking HA2 Eye Drop

Four Times A Day

55%

Once A Day

21%

Twice A Day

16%

Thrice A Day

Alternate Day

Once A Week

What are you using HA Eye Drop for?

Eye examination

100%

How much was the improvement?

Poor

67%

Average

33%

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Optho Life Sciences Pvt Ltd
Address: B-19, Block B, Sector 1, Opp. Hotel Mint Select Noida, Uttar Pradesh-201301 India

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver HA2 Eye Drop. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.

In case of any issues, contact us

Email ID: [email protected]
Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India

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Why we need a prescription?

HA2 Eye Drop

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General Information

Contains

Marketer

Storage

Product introduction

Uses of HA Eye Drop

Benefits of HA Eye Drop

Side effects of HA Eye Drop

How to use HA Eye Drop

How HA Eye Drop works

All substitutes for HA2 Eye Drop

Homide Eye Drop

Homacid Eye Drop

Homarin Forte Eye Drop

Homat 2% Eye Drop

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Trihexyphenidyl (Injection Route)

Trihexyphenidyl (Oral Route)

Procyclidine (Oral Route)

Frequently asked questions

What is HA2 Eye Drop used for?

Who should not use HA2 Eye Drop?

Can HA2 Eye Drop increase eye pressure?

Can I drive after using HA2 Eye Drop?

Can HA2 Eye Drop cause allergic reactions?

Can HA2 Eye Drop be used in both eyes?

How long does the effect of HA2 Eye Drop last?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

References

User feedback

Patients taking HA2 Eye Drop

What are you using HA Eye Drop for?

How much was the improvement?

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

In case of any issues, contact us

Lab tests offered by us

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