Glory Eyecare Optometrists

18. Can Vision and Prescription Change Suddenly or Temporarily?

​Yes, vision and prescriptions can change quickly. Our eyes, body, and environment are always interacting, so changes can happen without us noticing. Some common causes include:

• External Eye Conditions: Lid diseases (droopy, inflammations, in-grown eyelashes), dry or watery eyes, corneal diseases (surface disorders, foreign bodies, abrasion, infection, edema, keratoconus), cataracts, ciliary spasm, tired eyes, eye rubbing, allergies, .……

• Internal Eye Conditions: Glaucoma, macular degeneration, retinal diseases,.......

• Muscle or Nerve Problems: eye muscle palsies, binocular vision disorders, ……

• Orbital Disorders: inflammation (cellulitis), hemorrhage, growth (tumors), ......

• Brain and Nerve Disorders: transient ischemic attack (carotid artery temporary blockage), optic nerve diseases, cranial nerve palsies, brain aneurysms or tumors, visual migraines, ……

• General Health Conditions: Diabetes, hormonal changes (pregnancy), multiple sclerosis, sleep disorder, ……

• Medications: Eye drops or ointments, many general drugs (sulfa-based, acetazolamide, indapamide, and sulphasalazine, hormonal medications (oral contraceptive, contraceptive implant), CPAP, ……

• Trauma or Surgery: Injuries, surgeries, or treatments (hyperbaric oxygen therapy), ......

• Contact Lens Wear: poor fitting, incorrect prescroption, wrong lenses, ......

• Others: Uncorrected or incorrect prescription of refractive errors, tired eyes, alcohol, CPAP, smoking, wind, steam, ......

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In short, many factors can cause your vision to fluctuate, so it’s important to get regular eye exams and discuss any changes with your optometrist.

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https://allabouteyes.com/changes-vision-prescription-whats-normal-whats-not/

https://www.allaboutvision.com/conditions/fluctuating-vision/

https://hardinvalleyeye.com/why-does-my-eyewear-prescription-change-every-year/

https://calgaryfamilyeyedoctors.com/five-ways-your-glasses-prescription-can-change-rapidly/

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19. Why Do Different Optometrists Give Different Prescriptions?

It’s common for different optometrists to provide slightly different prescriptions for the same patient, even without significant vision changes. This is because:

1. Elements of a Prescription: A prescription includes the sphere (nearsightedness or farsightedness), cylinder (astigmatism), and axis (direction of curvature). For bifocals or progressives, there's also an 'ADD' power.

2. Tolerance and Variability: Glasses are made to exact tolerances, but small differences in prescriptions can still occur. These small variations may affect your vision, even if within the acceptable range.

3. Adaptation: The brain adjusts to slight differences in prescriptions. That's why glasses may feel blurry or distorted at first, but if they’re close, the brain can adapt over time. External factors, like fatigue or health conditions, can also influence your prescription.

4. Prescription Changes: An optometrist’s measurements are a snapshot of your vision at the time of the exam. If you don't visit often, your prescription may change over time.

5. How to Know if Your Glasses Are Right: If you’re having trouble with a new prescription, give it 1-2 weeks to adjust. If you’re still struggling, see your optometrist for a re-check to ensure the lenses match the prescription.

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Optometry is both a science and an art, and your prescription may vary based on several factors that influence how you see.

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https://www.eyeque.com/knowledge-center/you-can-visit-two-eye-doctors-and-get-two-different-prescriptions-heres-why/

20. Have You Been Given the "Wrong" Prescription?

It’s common to experience some discomfort when trying new glasses, even if your prescription hasn't changed much. This doesn’t necessarily mean you’ve been given the wrong prescription.

Understanding "Wrong" vs. "Incorrect" Prescriptions:

• Wrong Prescription: This is very rare and occurs when you receive someone else’s prescription by mistake. It’s like taking the wrong medication—it won't work for you. This can happen due to human error in processing, especially with new patients or if your prescription history is unclear.

• Incorrect Prescription: This is more common and means your prescription may not meet your specific visual needs. For example, you might receive the wrong type of lenses (e.g., reading glasses instead of distance glasses) or improperly fitted multifocal lenses. Small errors in fitting, such as the lens being misaligned, can also cause issues.

Factors to Consider:

• Adaptation: It’s normal to need time to adjust to new glasses, especially multifocals or if your prescription changed. If after 1-2 weeks you still feel uncomfortable, it’s worth visiting your optometrist for a re-check.

• Prescriptions Can Vary: Small differences between prescriptions from different optometrists can occur, but they typically won’t affect your vision much. Variations in how you respond to tests, plus differences in how each optometrist interprets the results, can lead to slightly different prescriptions.

The Bottom Line:
Optometrists and dispensing opticians are trained to provide you with lenses tailored to your needs, but if your new glasses aren’t working as expected, it’s important to follow up.

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https://capitaleye.com.au/have-you-been-given-the-wrong-prescription-from-your-optometrist/

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​​21. Why Do I Need to “Adjust” to My New Prescription?

When your optometrist updates your prescription, you may need time to "adjust" to the new lenses. Here’s why:

Why Prescriptions Change:

• Factors Impacting Prescription Changes: Changes in your vision can result from factors like uncontrolled diabetes, cataracts, or pregnancy. Even slight variations in measurements from different optometrists or equipment can cause minor changes to your prescription. These variations are normal and typically small (around 0.25D).

• Functional Changes: Not all prescription changes are noticeable. Sometimes a minor adjustment improves comfort or clarity, even if the change in visual sharpness is small. Our optometrists assess whether a new prescription will benefit you functionally, ensuring it enhances your daily vision comfort.

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The Adjustment Process:

• Why It Takes Time: Just like adjusting to new shoes or clothes, new glasses may feel unfamiliar at first. It can take a few days for your eyes and brain to adapt, especially with multifocal lenses or significant changes. 

• Personalized Lenses: At Glory Eyecare, we offer a variety of multifocal lenses tailored to your needs, whether for work, sports, or study, ensuring the best fit and comfort.

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Bottom Line:
It’s normal to need time to adjust to new glasses. If you don’t feel comfortable after a few days, we recommend returning for a re-check to ensure your prescription is right for you.

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https://capitaleye.com.au/why-do-i-need-to-adjust-to-my-new-prescription/

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22. Differences Between Emergency Department, Public Hospital, and Private Eye Clinics:

Emergency Department:

• Long waiting times with many critically ill patients.

• Non-urgent cases may be referred back to private practitioners.

Public Hospital Outpatient Clinic:

• Primarily for critical or low-income patients.

• Long waiting periods (months) and limited flexibility in scheduling.

• May have less experienced practitioners, as it’s a teaching facility.

• Patients cannot choose their doctor.

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Private Eye Clinic:

• Allows patients to choose their doctor.

• Offers faster service and often better outcomes due to personalized care.

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23. Why do optometrists test your eyes after 1 week of wearing a new brand or different lens parameters?

Because different lenses can fit, feel, and affect your eyes differently. The 1-week test ensures:

• Proper fit and comfort

• Clear, stable vision

• Healthy eyes without irritation or damage

• Confirmation that the prescription is correct before you get the full supply

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Is this necessary?

Yes, it’s important to protect your eyes and ensure safe, comfortable lens wear.

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What is the typical disposable contact lens checkup schedule?

1. Initial fitting and trial lenses

2. 1-week follow-up to check fit, vision, and eye health

3. Regular reviews every 6–12 months or as advised

Can I collect lenses without the 1-week check? Why or why not?

Usually, no. Skipping this check risks missing early problems like irritation or poor fit that may not cause symptoms yet but can lead to serious damage.

What if I am unwell and can’t pick them up myself?

You can ask your optometrist if someone else (like a family member) can collect them for you or if exceptions apply. However, the check itself is important and usually must be done in person.

Is this the clinical standard?

Yes, follow-up after trial lens wear is widely recommended by optometry professional bodies worldwide.

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How serious can it be if I don’t feel symptoms?

Very serious. Some eye problems (e.g., corneal swelling, ulcers, infections) start silently and can cause permanent vision loss if untreated.

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Why do optometrists need to follow clinical standards?

To provide safe, effective care, protect your eye health, and meet professional and legal responsibilities.

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Does Medicare cover frequent eye tests for contact lenses?

Medicare covers certain eye exams for medical conditions but usually does not cover routine contact lens checkups. These visits are typically privately billed.

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24. Why my previous optometrist didn’t check my eyes as thoroughly after a contact lens change?

There are a few possible reasons:

1. Different Clinical Standards or Approach

Some optometrists may follow less thorough protocols, especially if they assumed you were an experienced wearer or the changes seemed minor. However, this carries more risk.

2. They May Have Given You Lenses Without a Trial Period

Instead of offering a trial lens and follow-up, some optometrists dispense a full supply immediately — but this skips the safety step of confirming fit and eye health after actual wear.

3. Limited Time or Clinic Model

High-volume or discount practices may shorten appointments or skip follow-ups to keep costs low. In contrast, more comprehensive clinics follow clinical best practices for long-term safety.

4. They May Have Missed or Overlooked the Need

It's possible they assumed everything was fine because you didn’t report discomfort. But many lens-related issues start without symptoms, so relying only on how you feel isn’t enough.

5. Lens Parameters May Not Have Changed

If the brand and parameters stayed the same, they may have skipped rechecking — though annual eye health reviews are still recommended.

In short, your current optometrist is likely following stricter, evidence-based standards to protect your eye health — even if it feels more cautious.

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25. Even if I’ve worn many different contact lenses for years without problems, could my eyes still react differently to a new brand or lens design?

Yes — and here’s why:

1. Subtle differences matter

Each brand has a different shape, material, water content, and oxygen flow. Even tiny differences can affect comfort, eye health, or vision over time.

2. Your eyes can change

Eye shape, tear film, and sensitivity can change with age, illness, medications, or environment — meaning a lens that once worked well might no longer be ideal.

3. Some issues start silently

Conditions like corneal swelling, dryness, or reduced oxygen supply can develop with no symptoms at first. By the time discomfort appears, damage may already have begun.

So even with a good track record, regular checks help catch early signs before they become serious, especially when trying something new.

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26. Why Comprehensive Eye Exams Matter?

Eyes can reveal silent, life-threatening conditions before symptoms appear, enabling early intervention to prevent vision loss, organ damage, or death.

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* Unexpected emergency eye‑care cases from my patients are shown on https://www.gloryeyecare.com/unexpected-emergency-cases

​​The Importance of Regular Optometric Exams

Even if your vision feels fine, routine eye exams are essential for maintaining long-term eye health. Here’s why:

1. Early Detection of Silent Eye Diseases
Conditions like glaucoma, macular degeneration, and diabetic retinopathy often progress without symptoms. Regular exams can detect them early and help prevent vision loss.

2. Accurate, Up-to-Date Prescriptions
Vision can change subtly over time. Updated prescriptions reduce eye strain, improve clarity, and prevent headaches.

3. Eye Exams Reveal Systemic Health Issues
Your eyes can show early signs of diabetes, high blood pressure, autoimmune diseases, and even neurological conditions like brain tumors.

4. Relief from Digital Eye Strain
Optometrists can provide solutions—such as screen-specific lenses, lubricating drops, and lifestyle tips—to manage discomfort from prolonged screen use.

5. Essential for Children’s Learning
Clear vision is critical for development and academic performance. Routine exams ensure children don’t miss out due to undetected vision issues.

6. Monitor Age-Related Changes
As we age, risks for cataracts, glaucoma, and macular degeneration increase. Yearly checks help manage these conditions proactively.

Recommended Eye Exam Frequency

• Infants & Children (0–14): First exam at 6 months, before school, then yearly

• Teens (15–17): Every 1–2 years

• Adults (18–60): Every 1–2 years

• Seniors (60+): Yearly

• Glasses/Contact Lens Wearers: Yearly

• High-Risk Patients (e.g. diabetes, family history): Every 6–12 months or as advised

Regular eye exams are preventive care—for your vision and overall health. Don’t wait for symptoms. Book your eye test today.

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👁️ Independent Optometrists vs Discount Chains – What’s the Difference?

FeatureIndependent OptometristDiscount Chains (e.g., Specsavers)

Appointment TimeLonger (30–60 min) for detailed, personalised careShorter (15–20 min) – focused on quick prescriptions

Optometrist ExperienceHighly experienced; often specialty-trained (e.g., ortho-k, dry eye, glaucoma, kids’ vision)Varies – often newer graduates; less specialist focus

Continuity of CareSee the same optometrist; builds long-term trustHigh turnover; may see different optometrists each visit

Health DetectionStrong focus on early detection (glaucoma, macular degeneration, diabetes)Basic health checks; primary focus on prescribing glasses

Technology & TestsIncludes advanced scans (OCT, retinal imaging, visual fields)Basic tests standard; advanced imaging optional or extra cost

Frames & LensesPremium brands (Hoya, Zeiss, Essilor); unique styles and custom fittingHouse brands and mass-market deals (e.g., 2-for-1); fewer premium options

Follow-up & SupportPersonal service; free adjustments, emergency care, warranty supportCentralised customer service; consistency varies store to store

ValueLong-term vision comfort, fewer remakes, and better outcomesLowest upfront cost; less tailored solutions

✅ Bottom Line

• Choose an independent optometrist if you value thorough care, medical-grade technology, premium products, and long-term eye health.

• Choose a chain store if you just need affordable glasses quickly with minimal fuss.

Let me know if you’d like this turned into a flyer or adapted for your social media—it could make an eye-catching post (pun totally intended 😄).

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Q&A Section (answers from ChatGPT for your reference)

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Q1. How common are misunderstandings in communication between patients and healthcare providers including optometrists?

1. Forgetting information (40–80%)

• Source: Kessels RP (2003), Patient Education and Counselling.

  • Review shows 40–80% of medical information is forgotten immediately after consultation.

  • The more information given, the worse the recall.

2. Incorrect recall (≈50%)

• Same Kessels review: Almost half of recalled information is remembered incorrectly.

3. Contributing factors

• Stress/anxiety: Common finding across health communication research — stress reduces memory and comprehension.

• Expectation mismatch: Studies show patients often interpret advice through what they hope for (e.g., “glasses will make vision perfect instantly”).

• Language/cultural factors: WHO and health literacy research confirm higher miscommunication risks among elderly and ESL patients.

4. Optometry-specific evidence

• Progressive/multifocal lens adaptation:

  • Clinical practice guidelines note that patients often need days to weeks to adapt, but many expect immediate clarity.

  • Studies: Elliott DB (2007), Clinical Procedures in Primary Eye Care — adaptation usually several days to 2 weeks, sometimes longer.

• Dry eye treatment adherence:

  • Poor compliance documented — patients often underuse drops because they forget or underestimate importance (Nichols KK et al., Ocular Surface, 2011).

5. Practical point

• Misunderstanding is not a practitioner’s fault but a well-established issue in healthcare.

• That’s why written follow-ups, handouts, and visual aids are recommended by Patient Education and Health Literacy experts.

✅ In short:

• The numbers (40–80% forgotten, ~50% recalled wrong) are directly from Kessels (2003), a widely cited study.

• The causes and optometry examples are consistent with ophthalmic/optometric research and clinical guidelines.

• The adaptation period for progressives (days to weeks, sometimes up to a month) is accurate and standard teaching.

Q2: Why do I adapt quickly to my old progressive glasses, but this new pair feels harder to get used to? Could my cataracts, dry eyes, or other eye conditions affect this? If adaptation is needed, what is the usual way to adjust?”

It is very common for new progressive (multifocal) glasses to feel different from old ones. Even if you adapted easily to your previous pair, several factors could make a new pair feel harder at first:

1. Prescription changes:

• If your lens strength (especially for near vision) has changed, your eyes need time to adjust.

• Large changes between old and new prescriptions can temporarily cause blur or discomfort.

1. Cataracts:

• Cataracts can slightly blur vision and cause light scatter, making it harder to get clear focus with new glasses.

1. Dry eyes:

• When the tear film on your eyes is unstable, vision can fluctuate throughout the day. This can make new glasses feel “unclear” even if the prescription is correct.

1. Lens design and frame differences:

• Different progressive lens designs or changes in frame height/fit can affect how quickly your brain learns to use the new lens zones for distance, intermediate, and reading vision.

1. Normal adaptation process:

• Most people take a few days to 2 weeks to fully adapt. Some may take 3–4 weeks.

• Tips for adaptation:

  • Wear the new glasses full-time, don’t switch back and forth.

  • Move your head slightly rather than just your eyes when reading or looking at objects.

  • Use your eye drops regularly if you have dry eyes.

Research support:

• Studies show that 20–30% of new progressive wearers notice initial blur or distortion (Elliott, Clinical Procedures in Primary Eye Care, 2007).

• Dry eye or cataracts increase the likelihood of adaptation issues (Nichols KK, Ocular Surface, 2011).

• Proper counselling, gradual adaptation, and follow-up can help most patients succeed.

✅ Key takeaway: It is normal for new glasses to feel different at first, especially with changes in prescription, lens design, dry eyes, or cataracts. Most people adjust with consistent wear over 1–3 weeks, and your optometrist can check and fine-tune the prescription if needed.

Q3: Why don’t consumer protection laws usually allow a refund for prescription glasses just because the vision isn’t perfectly clear when I first get them?

When you buy prescription glasses, the law treats them differently from ordinary products. This is because glasses are custom-made for your eyes based on measurements and prescriptions that can change over time.

• Individual vision can fluctuate: Dry eyes, cataracts, or small prescription changes can make your vision temporary unclear, even if the glasses match your prescription.

• Prescription is based on testing at a specific time: Glasses are made according to the best measurements taken during your exam. Because vision can naturally change, some differences are expected.

• Adaptation period is normal: New progressive or multifocal lenses often need days to weeks to adapt, even if the prescription is correct.

• Consumer law exceptions: Refunds are usually allowed if the glasses are defective or not made to the prescription provided, not if your vision is temporarily fluctuating or you need time to adjust.

Research/Evidence:

• Studies show 20–30% of new progressive wearers notice initial blur or distortion, which usually improves with adaptation (Elliott DB, Clinical Procedures in Primary Eye Care, 2007).

• Dry eye and tear film instability can cause temporary visual fluctuations (Nichols KK, Ocular Surface, 2011).

✅ Key takeaway: Your glasses were made correctly according to your prescription. Temporary blur, adaptation needs, or vision changes due to eye conditions are not considered defects, so a refund is generally not required by consumer protection law.

Q4: If I misunderstood my optometrist and said I lost trust in him, and then asked for a refund for my glasses—but the law says refunds aren’t allowed—what is the best way to resolve this and get the best results for my vision?

It is common to misunderstand information during an eye exam or consultation. The best way to resolve this is to:

1. Acknowledge the misunderstanding – You can explain that you may have misunderstood the options.

2. Focus on your vision – Work with your optometrist to make sure your glasses are correct and your eyes are healthy.

3. Use the support offered – Take advantage of the prescription warranty, lens adjustments, or credits toward dry eye treatment if available.

4. Communicate calmly – Explain your concerns clearly and listen to the solutions your optometrist provides.

✅ Key point: The goal is to get the clearest, most comfortable vision while keeping the relationship positive, rather than asking for a refund.

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Q5. What are the common causes of vision or glasses prescription to change quickly and fluctuate? How long does each one take?

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Rank       Condition / Factor                                        Typical Progression / Mechanism                                                                           Approx. Timeframe

1               Acute Glaucoma (Angle-closure)                 Sudden eye pressure spike → corneal edema, blurred vision, halos, pain         Minutes–Hours

2               Dry Eye                                                            Tear film instability reduces visual clarity                                                                  Hours–Days

3               Watery / Epiphora Eyes                                Excess tears intermittently blur vision                                                                       Hours–Days

4               Tired Eyes / Fatigue                                       Accommodative spasm, reduced contrast sensitivity                                             Hours–Days

5               Convergence Dysfunction                            Binocular misalignment, eye strain                                                                            Hours–Days

6               Accommodative Dysfunction                      Poor focusing ability for near tasks                                                                            Hours–Days–Weeks

7               Brain / Neurological Disorders                    Visual pathway involvement, field defects, processing delays                              Hours–Weeks

8               Retinal Diseases                                            Peripheral or central vision loss depending on lesion                                            Days–Months

9               Medications                                                   Can induce refractive changes, cataracts, or ocular surface changes                  Days–Months

10             Macular Diseases                                          Retinal damage affects central vision                                                                        Weeks–Months                         

11             Diabetes / Fluctuating blood sugar           Lens swelling and refractive changes                                                                         Weeks–Months

12             Trauma / Steroid-induced cataract            Lens opacity accelerates                                                                                              Months       

13             Posterior Subcapsular Cataract                 Central posterior lens opacity                                                                                     Months–1–2 yrs

14             Cortical Cataract                                           Lens cortex opacities cause glare and blur                                                               Months–Years

15             Nuclear Sclerosis Cataract                          Gradual central lens hardening                                                                                  Years

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✅ Observations:

• Fastest changes (hours–days): Mainly ocular surface, fatigue, or binocular/accommodative issues.

• Intermediate changes (days–months): Retinal/macular disease, medication effects, trauma, or diabetic lens changes.

• Slowest changes (months–years): Most age-related cataracts (cortical, nuclear).

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Q6. What are the consultation fees of private ophthalmologists?

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             Eye Specialist Fee                                               Initial Consult                                                                 Subsequent Consult                                                         

        (May 2025 Online Info)                      Fee           Medicare Rebate           Gap                                Fee          Medicare Rebate           Gap                         

                    Standard                             $200 - $280+              $80                  $120 - $200+                 $120 - $180+            $40                   $80 - $140+

                   Pensioner                            $150 - $200+              $80                    $70 - $120+                   $90 - $150               $40                   $50 - $110+

                   Paediatric                            $220 - $370+         $80-$190             $140 - $180+                 $140 - $200+             $40                 $100 - $160+

        Overseas / WorkCover                 $220 - $380+               $0                   $220 - $380+                 $120 - $260+              $0                  $120 - $260+               

                    Dry Eye                               $180 - $390+          $40-$80              $143 - $313+                 $120 - $200+             $40                   $80 - $160+                

Foreign Body Program: Incl. consult, removal, 1 mandatory follow-up, plus 1−2 extra if needed. More foreign bodies = higher fees.

        Superficial – Complex                  $200 - $350+       $115-$173              $85 - $177+                   $120 - $200               $40                  $80 - $160+                      

+: Extra fees for ancillary scans/tests.     

                   Perimetry                              $70 - $120                $55                    $15 - $65                        $70 - $120                $0                   $70 - $120        

Fundus Photography (Diabetes)          $40 - $100                $50                     $0 - $50                         $40 - $100                $0                   $40 - $100                  

          Pan-retinal Imaging                    $100 - $180                 $0                  $100 - $180                     $100 - $180                $0                  $100 - $180

 Optical Coherence Tomography         $80 - $150                $28                   $52 - $122                       $80 - $150                $0                   $80 - $150                 

        Corneal Topography                      $40 - $90                    $0                    $40 - $90                          $40 - $90                 $0                    $40 - $90