How To Prepare For Cataract Surgery: Everything You Need To Know

Cataract surgery is one of the safest and most commonly performed procedures. Even so, preparing for eye surgery naturally raises questions. Knowing what lies ahead helps replace uncertainty with confidence, ensuring you feel comfortable and informed at every stage of your care.

From what to do the night before to how long the procedure takes and what to expect during recovery, this guide brings together everything you need to feel informed, confident and fully prepared for cataract surgery.

Pre-Operative Assessment Before Cataract Surgery

Safe, effective cataract treatment relies on meticulous planning. The journey begins with a comprehensive pre-operative assessment before cataract surgery, where clinical specialists gather detailed baseline measurements of your eyes and review your general health.

During this appointment, an ophthalmic technician and optometrist carry out several diagnostic evaluations:

• A detailed eye examination, where the optometrist will measure the eye, assess visual acuity, examine the cornea, iris and lens, and evaluate pupil dilation.
• Biometry scans to ascertain corneal curvature and axial length and calculate your new lens strength
• A review of your medical history to check for underlying health conditions, allergies or medications you’re currently taking.
• Time to ask any final questions about the procedure.

This is a free, no-obligation appointment. It is also the ideal time to discuss lifestyle visual requirements, such as driving, reading, or screen work, so at your consent appointment the surgeon can recommend the most suitable lens option.

Will You Need a General Health Check Before Surgery?

In most cases, a full physical exam isn’t required. Routine blood tests or formal physical examinations are not usually necessary for modern cataract surgery. However, if a patient manages chronic conditions such as poorly controlled diabetes or high blood pressure, the ophthalmic team may liaise with their GP to confirm they’re safe to proceed. 

Practical Preparation for Cataract Eye Surgery

Thorough preparation for cataract eye surgery involves a few vital practical adjustments in the weeks and days before your operation. You might wonder if there is a preferable time of year to have cataract surgery, but clinically, the best time is simply whenever you feel ready to restore your vision.

Contact Lens Guidance

Contact lenses can alter the natural curvature of the cornea. To guarantee that the pre-operative scans taken during the initial assessment are completely accurate, contact lenses must be left out beforehand:

• Soft contact lenses: Keep out for at least one full week prior to assessment.
• Hard or rigid gas-permeable (RGP) lenses: Keep out for up to four weeks, as firmer materials require longer for the corneal surface to settle back to its baseline profile.

What Medications Should Be Stopped Before Cataract Surgery?

Before cataract surgery, you should be aware of specific medications that may need to be stopped. A full list of prescribed, over-the-counter, and herbal remedies should be shared with the surgical team. Please bring this list to your initial appointment. If there are any changes to your medications leading up to your surgery, please inform the ophthalmic team as soon as possible.  

Most routine medications can continue as normal, but some specific treatments require clinical oversight. Your medications will be evaluated by the treating surgeon and you will be guided appropriately regarding whether your medication needs to be discontinued temporarily before the surgery. 

1. Blood Thinners: Medicines such as aspirin, which prevent blood clots, can increase the bleeding risk during and after surgery. Depending on certain factors, these medications may be adjusted or temporarily discontinued before cataract surgery.
2. Certain Herbal Supplements: Common remedies including ginkgo biloba, garlic supplements, and ginseng can possess mild anticoagulant properties and should always be disclosed.
3. Alpha Blockers: These can affect the muscles of the iris, leading to floppy iris syndrome during cataract surgery. Surgeons manage this routinely and safely during surgery, provided they are alerted beforehand. Usage may sometimes need to be paused in advance. 

Travel and Clinic Logistics

While the surgery itself takes approximately 8 to 10 minutes per eye, patients should expect to remain at the hospital for up to 2 to 3 hours. This duration accommodates pre-operative pupil-dilating drops, clinical checks, and post-operative recovery. Because local anaesthetic and dilating drops cause temporary blurring, patients cannot drive home and must arrange for a companion to accompany them from the hospital. You should avoid public transport such as buses and trains due to increased exposure to dust. Travel in a private hired vehicle (e.g. taxi) is advisable if you do not have your own transport or a companion to drive you home. 

Patients frequently ask how long after cataract surgery you can drive? You must wait until your optometrist confirms your vision meets DVLA standards at your follow-up appointment. 

What To Do The Night Before Cataract Surgery

Before looking ahead to the dos and don’ts after cataract surgery, you should have a restful evening before your cataract surgery to prevent avoidable complications on the morning of treatment. On the morning before your surgery, we recommend: 

• Facial hygiene: Wash the face thoroughly using a gentle soap. Remove every trace of eye makeup, mascara, and cosmetic moisturiser to keep the eyelid margins clean and reduce the risk of surgical infection.
• Wardrobe choices: Select comfortable, loose-fitting clothing that is easy to remove or unbutton without pulling tightly over the head. Flat, non-slip shoes are advised. Layers work best, as operating theatres and clinic recovery areas are kept strictly climate-controlled.
• Remove all jewellery: All earrings, necklaces, rings, and facial piercings must be removed before arriving at the clinic to prevent interference with medical equipment.

Can I Eat Before Cataract Surgery?

As standard cataract surgery is performed under local anaesthetic rather than general anaesthetic, a strict overnight fast under local anaesthetic is not required. Patients can typically enjoy a light meal and drink clear fluids up to a few hours before their scheduled arrival time. However, alcohol must be avoided for at least 24 hours before surgery; alcohol causes dehydration and can alter the metabolism of sedatives and local anaesthetic agents. If applicable, always adhere to the specific fasting timeline provided during the pre-operative assessment.

Things I wish I knew before cataract surgery

Consultants frequently hear patients reflect on the aspects of treatment that surprised them most. Looking at the things I wish I knew before cataract surgery, four clinical factors stand out:

1. Watery eyes before cataract surgery are normal

Patients often worry about watery eyes before cataract surgery, suspecting an infection or sudden deterioration. In reality, cataracts cause visual strain, while age-related dry eye syndrome frequently coexists with cataract development. When the ocular surface becomes dry or irritated, the tear glands overcompensate by producing reflex tears. Disclosing these symptoms at the pre-op assessment allows the team to recommend lubricating drops to stabilise the tear film before the operation.

2. The surgery is completely pain-free

If you are terrified of cataract surgery, please be reassured that you are not alone and that the reality of the procedure is very gentle. At Optegra, cataract surgery is performed under local anaesthetic eye drops, avoiding the systemic risks and lengthy recovery associated with general anaesthesia. The eye is fully numbed; you remain awake and comfortable, seeing only soft, kaleidoscopic lights and feeling light fluid sensations without pain. 

We highly recommend myth-busting cataracts to ease any lingering fears about the procedure. 

3. Scheduling differs between the NHS and private healthcare

Treatment schedules vary greatly depending on whether you choose private cataract surgery or NHS cataract surgery: 

• NHS treatment: Cataract operations are scheduled separately. Patients usually wait between 4 and 6 weeks before undergoing treatment on the second eye, ensuring the first eye has settled.
• Private treatment: Private patients often have the option of bilateral surgery (both eyes treated on the same day) or a shorter gap of 1 to 2 weeks, accelerating overall visual recovery.

4. Visual clarity returns quickly

The comparison before and after cataract surgery is often striking. While the treated eye requires several weeks to heal fully, most patients notice a brighter, sharper world within hours of removing their protective eye shield. Colours look significantly cleaner, and the heavy yellow or brown tint caused by the cataract disappears immediately. 

If you are wondering if cataracts come back, the answer is no. Because the natural cloudy lens is permanently replaced with a clear artificial one, you can look forward to years of vibrant, unimpeded vision. 

Book a Consultation with Our Cataract Experts Today!

If you’re considering cataract surgery or have questions about an upcoming procedure, we’re here to help. At Optegra, you can book a free, no-obligation consultation with our team. 

Your journey begins with a virtual consultation to check your suitability. If treatment is recommended, we’ll then invite you for a face-to-face assessment to carefully plan your care.

Book your consultation today and take the next step towards a clearer vision with complete confidence.