
Last Updated: November 4, 2026
Quick Summary
To prepare for an ICL consultation, stop wearing contact lenses early (about 1 week for soft lenses, 2 to 3 weeks for gas-permeable), bring a written list of your medical history and medications, and block 90 minutes to 2 hours for the visit. Arrange a ride and bring sunglasses because dilating drops blur your near vision for several hours.
- Your vision should be stable for about a year before surgery.
- Soft and toric contact lenses need about 1 week of washout before evaluation.
- Most ICL consultations take 60 to 90 minutes, with testing alone running 30 to 45 minutes.
- Shallow anterior chamber depth is one of the most common reasons a patient is turned down.
- Ask the surgeon to explain your anterior chamber depth, endothelial count, and predicted vault.
Table of Contents
- Step 1: Confirm Your ICL Consultation Candidacy Basics
- Step 2: Stop Wearing Contact Lenses Before Your Exam
- Step 3: Gather Your Medical History and Medication List
- Step 4: Know What Tests to Expect at the Consultation
- ICL vs LASIK: What to Ask Before You Decide
- Questions to Ask Your Ophthalmologist About ICL
- ICL Surgery Cost and Recovery Time: Setting Expectations
- Book Your ICL Consultation
- Frequently Asked Questions
Step 1: Confirm Your ICL Consultation Candidacy Basics
An ICL consultation is a detailed evaluation to find out whether an implantable collamer lens suits your eyes. The ICL consultation is where an ophthalmologist measures your eye structure, reviews your health history, and explains what refractive surgery can and cannot do for you. (Source: FDA approval for the EVO ICL)
The implantable collamer lens, often called an ICL or EVO ICL, is a small lens placed inside the eye behind the iris (the FDA). It works with your natural lens to correct vision. Unlike laser surgery, it does not remove corneal tissue.
Not everyone qualifies. A common mistake is assuming a strong glasses prescription automatically makes you a candidate. Your eye surgeon checks several things first:
- Age and prescription stability: Your vision should be stable for about a year before surgery.
- Anterior chamber depth: The space inside your eye must be deep enough for the lens.
- Corneal health: Your cornea should be clear and healthy.
- Overall eye health: Conditions like glaucoma or uncontrolled dry eye can affect candidacy.
If you want a broader look at who qualifies for vision correction, read our guide on how to know if you are a refractive surgery candidate. Bring your current glasses prescription and a list of your eye history to the visit.
Step 2: Stop Wearing Contact Lenses Before Your Exam
Contact lenses change the shape of your cornea. That matters because your consultation relies on accurate corneal measurements. If you wear contacts too close to the exam, your readings can be off.
A common mistake is wearing soft lenses right up to the appointment. The fix is simple: stop early and confirm the timing with our office when you book.
The washout period depends on your lens type:
| Lens Type | Typical Washout Before Evaluation |
|---|---|
| Soft contact lenses | About 1 week |
| Toric contact lenses | About 1 week |
| Gas-permeable lenses | Often 2 to 3 weeks or longer |
These are general guidelines. Your eyes may need more time, especially with rigid lenses or a long wearing history. Ask for personalized washout guidance based on your lens type and how long you have worn them.
Glasses are fine during this window. Plan your schedule so you are not caught without a backup pair.
Step 3: Gather Your Medical History and Medication List
Your medical history shapes the whole conversation, and the consultation moves quickly once dilation starts. Bring a written list, not a rough memory.

Use this checklist to build your disclosure sheet before the visit.
Conditions to disclose, and why they matter:
- Diabetes: Poorly controlled blood sugar can slow healing and raise infection risk. Bring your most recent A1C if you have it.
- Hypertension: Blood pressure control affects surgical planning and anesthesia decisions.
- Autoimmune disease: Conditions such as rheumatoid arthritis or lupus can affect eye inflammation and healing, and some medications used to treat them suppress immunity.
- Thyroid disease: Thyroid eye disease can change eye structure and is a reason some surgeons defer refractive surgery.
- Glaucoma or high eye pressure: Affects candidacy and post-operative monitoring.
- Prior eye surgery or injury: Any past LASIK, PRK, RK, cataract surgery, or trauma changes the measurements and the surgical plan.
- Recurrent eye infections, severe dry eye, or keratoconus: Each can affect candidacy or timing.
- Pregnancy or nursing: Hormonal changes can shift your prescription and affect timing; most surgeons prefer to wait.
Medications and supplements to disclose:
- Blood thinners such as warfarin, apixaban, or rivaroxaban, and antiplatelet drugs such as aspirin or clopidogrel.
- Medications that dry the eyes, including many antihistamines, decongestants, and some antidepressants.
- Immunosuppressants and biologics.
- Isotretinoin (Accutane), which can affect the eyes and healing.
- All supplements, including fish oil, vitamin E, and herbal products that can thin the blood.
- All allergies, especially to medications, latex, or eye drops.
Disclose everything, even details that feel unrelated. Blood thinners, for example, can affect surgical planning and the decision to pause a medication. The same goes for medications that dry the eyes.
If you have diabetes or another condition that needs specialized monitoring, say so directly. Ask whether the practice has experience managing patients like you. A good eye surgeon welcomes the question.
Consultation logistics to plan for:
- Time: Block 90 minutes to 2 hours, including check-in and dilation.
- Transportation: Dilation blurs near vision for several hours. Arrange a ride if you are unsure about driving, and bring sunglasses.
- Support person: Optional, but useful for writing down instructions once your vision blurs.
- What to bring: Photo ID, insurance card, current glasses and contact lens prescription, a list of your medications and allergies, prior eye records if you have them, and your written questions.
- Payment questions: Ask in advance what the consultation fee covers and whether testing is billed separately.
Watch out: If you wear contacts, confirm the washout timing when you book, showing up in soft lenses can force the practice to reschedule your measurements.
Step 4: Know What Tests to Expect at the Consultation
Expect a comprehensive eye exam with several measurements, not a quick refraction. Plan for extra time and expect your pupils to be dilated partway through. (Source: general guidelines for refractive surgery candidacy)
Your ophthalmologist will likely run the following tests. Each one answers a specific question about whether an implantable collamer lens is safe and appropriate for your eye.
- Refraction and visual acuity: Confirms your exact prescription and how well you see with correction. This establishes the target correction and flags whether your prescription has been stable.
- Corneal topography and tomography: Maps the shape, curvature, and thickness of your cornea. This rules out keratoconus and other ectatic disorders, and it confirms your cornea is healthy enough for the surgical approach. It also helps the surgeon compare ICL against laser options.
- Anterior chamber depth and angle assessment: Measures the space between your cornea and natural lens. Surgeons evaluate anterior chamber depth and angle structure before considering a phakic lens. Shallow depth is one of the most common reasons a patient is turned down.
- White-to-white measurement: Measures the horizontal diameter of your iris to help select lens size. A lens that is too small or too large can affect positioning and vault.
- Endothelial cell count: Uses specular microscopy to count the cells lining the back of your cornea. These cells do not regenerate, so a low count can make ICL a poor choice.
- Eye pressure check: Screens for glaucoma risk and establishes a baseline for post-operative monitoring.
- Pupil dilation and fundus exam: Widens your pupils so the surgeon can view the retina, optic nerve, and macula. This step is why your near vision blurs afterward.
- Lens vault prediction: Uses the measurements above to estimate how far the ICL will sit from your natural lens. Vault that is too low or too high can require a lens exchange.
Dilating drops blur your near vision and make light uncomfortable for a few hours. Bring sunglasses and arrange a ride if you are unsure about driving.
The measurements do more than confirm eligibility. They drive lens sizing, power selection, and the decision to proceed, defer, or recommend a different procedure.
Watch out: If a practice quotes a surgery date before completing these measurements, treat that as a warning sign, the testing is what determines whether ICL is appropriate at all.
ICL vs LASIK: What to Ask Before You Decide
ICL and LASIK are both refractive surgery options, but they suit different eyes. LASIK reshapes the cornea with a laser. ICL adds a lens without removing corneal tissue.
Ask your eye surgeon these questions:
- How do the two compare for my prescription?
- What are the procedure risks and side effects of each?
- Which option fits my corneal thickness and eye structure?
- Can the procedure be reversed or adjusted later?
The reversibility question matters to many patients. An ICL can typically be removed by a surgeon if needed, while LASIK permanently changes the cornea.
For a closer look at the trade-offs, see our comparison of LASIK vs ICL for high myopia and our breakdown of the benefits of EVO ICL vs LASIK. Bring your questions in writing so nothing slips during the visit.
Questions to Ask Your Ophthalmologist About ICL
Good questions turn a consultation into a real decision. Start with your daily life and work backward.
Ask about:
- Glare and halos: How common are these side effects, and how long do they last?
- Night vision: How might night driving change after surgery?
- Follow-up care: What does the schedule look like after the procedure?
- Experience: How many ICL procedures has the surgeon performed?
If you are weighing reversibility against LASIK, our guide on how to compare LASIK and ICL reversibility walks through the key points.
Write your top five questions down before you go. It is easy to forget them once the dilating drops take effect.
ICL Surgery Cost and Recovery Time: Setting Expectations
Pricing for ICL surgery varies by practice, lens type, and your eye measurements. Ask for a written breakdown of what the fee covers, including pre-operative testing and follow-up visits. For current pricing or a quote, contact Clear Vision San Antonio directly through its website.
Recovery timelines differ from person to person. Recovery timelines differ from person to person, and full settling can take time. Your surgeon will give you a specific schedule.
Plan for:
- Eye drops: Antibacterial and anti-inflammatory drops are common after surgery.
- Follow-up visits: Your surgeon will set the follow-up schedule.
- Driving: Hold off until your vision is stable and your surgeon clears you.
Night vision deserves its own plan. Read our guidance on night driving after ICL surgery so you know what to expect and when to resume evening drives.
Book Your ICL Consultation
The best preparation is a conversation with a qualified eye surgeon who can review your eyes and answer your questions directly. At Clear Vision San Antonio, our team offers personalized attention and advanced lens implant technology. Request an appointment with Clear Vision San Antonio and get a clear plan for your vision.
Frequently Asked Questions
How long does an ICL consultation usually take?
Plan for a longer appointment than a standard eye exam. A comprehensive eye exam with corneal measurements, anterior chamber depth readings, pupil dilation, and refraction takes time, and dilating drops leave your vision blurry for several hours afterward. Bring sunglasses and arrange a ride home if you are not comfortable driving. Ask the office when you book so you can schedule the rest of your day around it.
Can I wear contact lenses before my ICL consultation?
Usually not, because contacts reshape the cornea and can skew the corneal measurements used for lens sizing. Washout periods vary by lens type, so confirm the timing with the office. Your eye doctor sets the exact washout based on your lens type and wearing history, so call the office before your visit rather than guessing.
What should I bring to my ICL consultation?
Bring a photo ID, your vision insurance card, a list of current medications and allergies, and any prior eye surgery or eye health records. Include your glasses prescription and the name of the doctor who wrote it. A written list of your questions helps too, since it is easy to forget details once your pupils are dilated.
What disqualifies you from ICL surgery?
Common reasons include an anterior chamber that is too shallow for the lens, unstable prescription, a history of certain eye diseases, or eyes that do not meet the measurements the implant requires. Your ophthalmologist reviews corneal topography, eye pressure, and your full medical history before recommending surgery. Only a comprehensive exam can confirm whether ICL is appropriate for your eyes.