What to Expect Before Cataract Surgery
The Initial Eye Exam
The cataract workup begins with a full eye exam. The doctor checks distance and near vision. The doctor uses a slit lamp to look at the front of the eye. The doctor dilates the eye and looks at the back of the eye. The exam confirms the cataract and checks for other findings that could affect surgery.
Other eye conditions can change the surgical plan. Mild glaucoma, mild dry eye, or mild macular changes all factor into lens choice. Past eye surgery, eye injuries, or other history also matter. Bring a list of any past eye care to the visit.
The first cataract evaluation usually takes one to two hours. Some of that time is the exam itself. Some is for measurements. Some is for talking through the lens options. Plan for a relaxed visit. Bring a list of questions you want to ask.
You will need dilation drops at this visit. The drops widen the pupil for the back-of-eye exam. The drops take about 30 minutes to work and last for several hours. You should plan for a driver to take you home. Vision will be blurry during this time, especially at close range.
Detailed Eye Measurements
Optical biometry measures three main things: the curve of the cornea, the front-to-back length of the eye, and the depth of the front chamber. These numbers feed into the formula that picks the right lens power. The measurement is taken with a special device. The whole test takes only a few minutes.
Modern optical biometry is more accurate than older ultrasound methods. It is the standard tool for cataract lens-power planning. Most practices use optical biometry whenever possible. Ultrasound is reserved for eyes where optical biometry cannot get a good reading, such as very dense cataracts.
If you have astigmatism or a history of LASIK, the doctor may also do corneal topography. This test maps the entire surface of the cornea in detail. It shows the irregularities that simpler tests might miss. The map is essential for planning toric lenses or post-LASIK cataract surgery.
The Lens Choice Conversation
The lens choice conversation covers your daily activities, your visual goals, and any other eye conditions. The doctor explains the lens types that fit your eye. The choices typically include single-focus lenses, extended depth of focus lenses, multifocal lenses, and toric versions of each. Some patients are also candidates for adjustable lenses.
Prepare for the lens conversation by thinking about your daily life. How do you split your time between near, intermediate, and far tasks? How important is it to be free of glasses? How comfortable are you with halos at night? The answers shape which lens fits best.
Ask the doctor what the realistic uncorrected and best-corrected vision outcomes are for your eye with each lens type. Ask about the cost difference. Ask about backup plans if the result is slightly off-target. Specific questions get specific answers.
Bring a notebook or use your phone to take notes during the conversation. The lens names and trade-offs can blur together. Notes help you compare options at home and make a confident decision.
Pre-Surgery Optimization
If your eye surface is rough from dry eye, the surgeon may recommend treatment before measurements. Treating dry eye improves measurement accuracy and final lens choice. The treatment can be as simple as artificial tears used several times a day. Some patients need prescription drops or other care.
If you have allergy eye, blepharitis, or other surface conditions, those also need treatment before measurements. The goal is a stable, smooth eye surface that gives accurate readings. A few weeks of focused care often makes a big difference.
If you have glaucoma or another eye condition that needs ongoing treatment, your eye doctor and cataract surgeon will coordinate the plan. Some patients continue all of their drops as before. Others may need adjustments. The doctors handle this together.
Medical Clearance
Routine preoperative laboratory testing is not required for healthy patients having cataract surgery. The procedure is safe enough that blood tests and EKGs are not needed for most patients. This is different from some other surgeries that require routine pre-surgery testing.
Medical clearance is reserved for patients with significant other health conditions. Examples include poorly controlled diabetes, recent heart attack, or unstable blood pressure. In these cases, your primary care doctor or specialist may be asked to confirm that you are safe to proceed with surgery.
Bring a current list of all medications, including over-the-counter drugs and supplements. Some medications need adjustment before surgery. Blood thinners may have specific instructions. Certain prostate medications can affect how the pupil dilates. Tell your surgeon about everything you are taking.
Tell your surgeon about any allergies, especially to medications, latex, or surgical materials. Past reactions to anesthesia or sedation are also worth mentioning. Your surgical team will plan around any known allergies or sensitivities.
Logistics for the Day of Surgery
You cannot drive yourself home on surgery day. Arrange a friend, family member, or paid driver in advance. Public transportation alone is not recommended either, since you will still feel the effects of sedation. The driver should plan to wait at the surgery center during the procedure.
Some surgeons prescribe eye drops to start a few days before surgery. These usually include an antibiotic and an anti-inflammatory drop. The drops reduce the risk of infection and inflammation after surgery. Start the drops on the schedule your team gives you.
Most patients are asked to avoid food and drink for several hours before surgery. The exact instructions depend on the type of sedation planned. Follow your team's instructions carefully. Eating too close to surgery can affect the sedation plan.
Wear loose, comfortable clothes. A button-up shirt is easier than something pulled over your head. Avoid eye makeup, fragrances, or lotions on the face. Bring your insurance card, photo ID, and a case for your glasses if you wear them.
When to Talk to an Eye Doctor
If your symptoms get noticeably worse between the workup and surgery date, mention it. Most cataracts progress slowly, but a sudden change can mean something else is going on. Your team can sort it out and adjust the plan if needed.
Life sometimes gets in the way of a surgery date. If you need to reschedule, call the office as early as possible. Rescheduling early gives the team time to fit another patient into the slot.
Sudden vision loss, sudden eye pain, or sudden flashes of light are signs to call your eye doctor right away. Do not wait until your scheduled visit. These can sometimes mean a problem that needs same-day care.
Common Questions About the Pre-Surgery Process
Most patients have surgery within a few weeks of the first evaluation. Some practices schedule surgery sooner. Others have a longer wait. The exact timing depends on the surgeon's schedule and your readiness. Treating dry eye or other conditions can extend the timeline by a few weeks.
Many practices include all the measurements at the first evaluation. Some schedule a separate visit for measurements after the lens choice has been made. Either approach works. Ask your practice how their workflow runs.
Most practices ask patients to stop contact lens wear for one to two weeks before measurements. Soft contacts usually need at least one week off. Rigid contacts may need longer. The cornea needs time to return to its natural shape after contact lens wear.
Nervousness is normal. Most surgical teams are used to addressing patient nerves. Talk to your surgeon about any specific concerns. Mild sedation during the procedure helps most patients stay calm. Some patients also benefit from a calming medication before the procedure.
Medicare and most private insurance cover the standard cataract workup. Some specialty tests may be billed separately. Premium lens evaluations may include additional testing not covered by insurance. Ask your practice for specifics on what is and is not covered.
This is possible but not ideal. The surgeon performing the surgery typically wants to do their own measurements. Some practices accept outside measurements with a re-check. If you must split the workup and surgery between practices, plan for some duplication of tests.
Most cataracts are removable regardless of how advanced they are. A very dense cataract may need a slightly modified surgical approach. Your surgeon will talk you through any adjustments to the standard plan. Most patients still have successful outcomes.
Schedule Your Cataract Workup
If you are considering cataract surgery and want to know what to expect at every step, schedule a thorough evaluation. Our team can examine your eye, take detailed measurements, and walk you through the lens options. Call our office to schedule your cataract workup today.