Vision Chart Explained: Numbers, Lines, and What They Mean for Your Eyesight
- Vision Chart Explained: 20/20, 6/6, Snellen Numbers & Eye Test Results
- Fast Interpretation
- What Is a Vision Chart?
- Snellen Chart: The Classic Distance Eye Chart
- 20/20 Vision and 6/6 Vision
- How to Read the Snellen Fraction
- Why 20/20 Is Not 'Perfect Vision'
- What Does 20/40 Mean?
- Snellen vs LogMAR
- ETDRS Eye Chart
- Tumbling E Chart
- Landolt C Chart
- Picture / Symbol Charts for Children
- Near Vision Charts
- Visual Acuity vs Refraction
- Myopia and the Eye Chart
- Hyperopia and the Eye Chart
- Astigmatism and Vision Charts
- Presbyopia: When Distance Chart Is Fine but Reading Is Hard
- Pinhole Test
- Why Each Eye Is Tested Separately
- Uncorrected vs Corrected Visual Acuity
- Why Home Eye-Chart Tests Are Limited
- Smartphone Eye Tests: Screening, Not a Full Exam
- Eye Chart for Children in School
- Vision Chart and Driving
- Night Vision and Eye Charts
- Eye Chart and Cataract
- Eye Chart and Glaucoma
- Eye Chart and Macular Disease
- Eye Chart and Diabetic Eye Disease
- Eye Chart and Dry Eye
- Eye Chart and Contact Lenses
- Contact Lens Price in Nepal
- Power Glasses and the Vision Chart
- Power Glasses Price in Nepal
- ZEISS Glasses in Nepal
- ZEISS Glasses Price in Nepal
- High Index Lens in Nepal
- Thinnest Power Lens in Kathmandu
- Blue Cut Glass Price in Nepal
- Prescription Sunglasses
- Eye Lens in Thamel / Optical Shop in Thamel Kathmandu
- Eye Clinic in Kathmandu for Vision Testing
- Eye Checkup Price in Kathmandu
- Tourists & Expats: Understanding a Nepal Vision Score
- What to Bring to an Eye Examination
- Same-Day Glasses After a Vision Test
- Vision-Chart Myths
- SEO Keyword Coverage for Kathmandu
- Why Choose Vision Concern for Vision Testing & Optical Care?
- Related Vision Concern Services — Live Verified Before Insertion
- Authoritative Visual-Acuity References
- Follow Vision Concern — Clickable Brand Logos
- Independent Reviews & International Trust
- Frequently Asked Questions — Vision Chart, Eye Test, Glasses & Contact Lenses
- Your Eye-Chart Number Is the Start — Not the Whole Eye Exam
Vision Chart Explained: 20/20, 6/6, Snellen Numbers & Eye Test Results
What does 20/20 really mean? Is 6/6 the same thing? Can you have 'normal' chart vision and still have glaucoma or retinal disease? This professional 2026 guide explains Snellen, LogMAR and children's eye charts, then shows how visual acuity connects to refraction, contact lenses, power glasses, ZEISS, TOKAI, high-index lenses and a complete eye checkup in Kathmandu.
Reference-standard central acuity
Refraction determines lens power
Eye health requires more testing
Fast Interpretation
6/6 is approximately 20/20. 6/12 is approximately 20/40. 6/60 is approximately 20/200. For people searching eye power test Kathmandu, remember that the vision chart measures acuity while refraction determines the actual prescription power. A vision-chart score measures central visual acuity only. It does not by itself measure peripheral vision, color vision, depth perception, contrast sensitivity or the health of the retina and optic nerve.
What Is a Vision Chart?
| Question | Professional Answer |
|---|---|
| What does it measure? | Visual acuity: how clearly you resolve detail at a standardized distance. |
| Does it measure eye power directly? | No. Refraction determines spectacle/contact-lens prescription. |
| Does it diagnose every eye disease? | No. It is one part of an eye examination. |
| Can someone read 6/6 and still have eye disease? | Yes. Glaucoma, retinal and other problems can exist despite good central acuity. |
| Can glasses improve chart performance? | Yes, when blur is due to correctable refractive error. |
Snellen Chart: The Classic Distance Eye Chart
| Feature | Meaning |
|---|---|
| Large letter at top | Easier optotype for poorer acuity |
| Progressively smaller lines | Tests finer spatial resolution |
| Standard distance | Commonly 6 metres / 20 feet |
| One eye at a time | Monocular acuity is measured |
| With and without correction | Shows unaided and corrected acuity |
20/20 Vision and 6/6 Vision
| Notation | Meaning |
|---|---|
| 20/20 | At 20 feet you can resolve what a reference-standard eye resolves at 20 feet |
| 6/6 | Metric equivalent at 6 metres |
| 20/40 | At 20 feet you resolve what a reference-standard eye resolves at 40 feet |
| 6/12 | Metric equivalent of approximately 20/40 |
| 20/10 | Finer acuity than 20/20; not required for a healthy eye |
How to Read the Snellen Fraction
| Part | Meaning |
|---|---|
| Numerator | Testing distance |
| Denominator | Distance at which a reference-standard eye resolves the same optotype |
| Smaller denominator | Better acuity |
| Larger denominator | Poorer acuity |
| Fraction alone | Does not describe color, depth, field, contrast or eye health |
Why 20/20 Is Not 'Perfect Vision'
| Visual Function | Measured by Snellen? | Why It Matters |
|---|---|---|
| Central high-contrast acuity | Yes | Reading letters at distance |
| Peripheral vision | No | Mobility, glaucoma, retina |
| Color vision | No | Color discrimination |
| Depth perception | No | Binocular function |
| Contrast sensitivity | Not adequately | Night/low-contrast performance |
| Eye health | No | Requires clinical examination |
What Does 20/40 Mean?
| Result | Plain-English Interpretation |
|---|---|
| 20/20 | Reference-standard distance acuity |
| 20/25 | Slightly below 20/20 |
| 20/30 | Mildly reduced acuity |
| 20/40 | You need to be 20 ft away for detail a reference-standard eye sees at 40 ft |
| 20/80 | More significant central acuity reduction |
| 20/200 | Severe central acuity reduction; legal definitions vary by country and field criteria |
Snellen vs LogMAR
| Feature | Snellen | LogMAR / ETDRS |
|---|---|---|
| Line progression | Not perfectly uniform | Logarithmic / regular |
| Letters per line | Varies | Typically standardized |
| Research use | Common but less standardized | Preferred in many clinical studies |
| Scoring | Often line-based | Often letter-by-letter |
| Ease for patients | Very familiar | Less familiar notation |
ETDRS Eye Chart
| Feature | Why It Matters |
|---|---|
| LogMAR design | Regular acuity steps |
| Five letters per line | Standardized crowding |
| Sloan letters | Standardized optotypes |
| Common test distance | Often 4 metres |
| Research role | Frequently used when precise change measurement matters |
Tumbling E Chart
| Who It Helps | How It Works |
|---|---|
| Young children | Point to direction of E arms |
| Non-readers | No alphabet knowledge needed |
| Language barriers | Direction response can be universal |
| Screening | Useful when matched to standardized chart procedure |
| Limitation | Still tests acuity, not full eye health |
Landolt C Chart
| Feature | Meaning |
|---|---|
| Ring with gap | Patient identifies gap direction |
| Standard optotype | Used internationally |
| Language-independent | Useful across languages |
| Research/clinical use | Can be standardized |
| Still limited | Does not diagnose disease alone |
Picture / Symbol Charts for Children
| Chart Type | Use |
|---|---|
| LEA symbols | Standardized pediatric visual acuity |
| HOTV | Matching letters for young children |
| Picture charts | Helpful before alphabet recognition |
| Crowded symbols | Can better reveal amblyopia-related acuity loss |
| Monocular testing | Each eye must be tested separately |
Near Vision Charts
| Near Test | What It Assesses |
|---|---|
| Reading chart | Functional near acuity |
| Near optotypes | Close-detail resolution |
| Working distance | Must be standardized |
| Presbyopia assessment | Helps identify near add need |
| Not distance acuity | Distance and near should be assessed separately |
Visual Acuity vs Refraction
| Visual Acuity | Refraction |
|---|---|
| Measures clarity | Determines corrective lens power |
| Can show reduced vision | Helps explain refractive component |
| Does not give sphere/cylinder/axis | Produces sphere/cylinder/axis and add when needed |
| Can be tested with current glasses | Can refine prescription |
| Does not replace eye-health exam | Also does not replace eye-health exam |
Myopia and the Eye Chart
| Finding | Meaning |
|---|---|
| Distance letters blurry | Myopia may be one cause |
| Near vision relatively clearer | Common in myopia |
| Pinhole improves acuity | Suggests optical/refractive component but is not a prescription |
| Refraction needed | Determines correct minus power |
| Children | Progression needs monitoring, not just stronger glasses |
Hyperopia and the Eye Chart
| Finding | Meaning |
|---|---|
| Distance may still be clear | Young eyes can accommodate |
| Near strain/headache | May occur with sustained focusing |
| Acuity alone can miss hyperopia | Refraction is needed |
| Children | Cycloplegic assessment may be needed in selected cases |
| Correction | Plus power when clinically indicated |
Astigmatism and Vision Charts
| Issue | Explanation |
|---|---|
| Blur/distortion | Different meridians focus differently |
| Squinting | May temporarily improve clarity |
| Chart result | Can be reduced at distance and/or near |
| Diagnosis | Requires refraction/keratometric assessment as appropriate |
| Correction | Cylinder and axis in glasses or toric contacts |
Presbyopia: When Distance Chart Is Fine but Reading Is Hard
| Pattern | Why |
|---|---|
| 6/6 distance + near blur | Presbyopia can affect near focus while distance remains clear |
| Usually noticed after 40 | Age-related loss of accommodation |
| Reading chart | Helps quantify near function |
| Readers | Can provide near-only correction |
| Progressives | Combine distance/intermediate/near |
Pinhole Test
| Question | Answer |
|---|---|
| What does it do? | Reduces peripheral rays and optical blur |
| If vision improves? | Refractive blur may contribute |
| Does it produce a prescription? | No |
| If no improvement? | Further ocular assessment may be needed |
| Is it diagnostic alone? | No |
Why Each Eye Is Tested Separately
| Reason | Importance |
|---|---|
| One eye may hide the other's weakness | Binocular viewing can mask unilateral blur |
| Amblyopia screening | Children may not notice one weak eye |
| Unequal prescriptions | Anisometropia can be detected |
| Eye disease | One eye may be affected first |
| Accurate prescription | Monocular data improves assessment |
Uncorrected vs Corrected Visual Acuity
| Result | Meaning |
|---|---|
| UCVA | Acuity without glasses/contact lenses |
| Presenting acuity | Acuity with what the person arrived wearing |
| BCVA | Best-corrected visual acuity after refraction |
| Improves strongly with correction | Refractive error likely important |
| Does not improve as expected | Eye-health cause may need investigation |
Why Home Eye-Chart Tests Are Limited
| Problem | Why It Matters |
|---|---|
| Wrong print size | Changes optotype angular size |
| Wrong distance | Changes result |
| Poor lighting | Reduces performance |
| Memorizing letters | Invalidates repeat test |
| Both eyes open | Can hide one-eye problems |
| No eye-health assessment | Disease may be missed |
Smartphone Eye Tests: Screening, Not a Full Exam
| Use | Limitation |
|---|---|
| Quick screening | Can flag possible reduced acuity |
| Travel/remote context | May be useful when validated |
| Screen calibration | Can affect size |
| Phone distance | Must be controlled |
| Cannot replace refraction | Prescription still needs professional testing |
| Cannot inspect retina/optic nerve | Eye-health examination still required |
Eye Chart for Children in School
| School Sign | Why Check |
|---|---|
| Cannot see board | Myopia possible |
| Moves close to screen | Distance blur possible |
| Squints | Trying to improve focus |
| One eye closes | Binocular or unequal-eye issue |
| Headaches | Vision one possible contributor |
| Declining classroom performance | Vision assessment can rule out visual barriers |
Vision Chart and Driving
| Driving Need | Why Chart Alone Is Not Enough |
|---|---|
| Distance acuity | Important |
| Peripheral field | Also important |
| Contrast | Important in rain/night |
| Glare recovery | Relevant |
| Color/sign recognition | Important |
| Legal standard | Varies by jurisdiction |
Night Vision and Eye Charts
| Day Chart Result | Night-Time Reality |
|---|---|
| 6/6 in bright room | Does not guarantee comfortable night driving |
| Large pupils | Can reveal aberrations |
| Glare | May reduce functional clarity |
| Cataract | Can worsen night glare |
| Dry eye | Can fluctuate vision |
| Driving lens discussion | Requires prescription + lifestyle assessment |
Eye Chart and Cataract
| Finding | Cataract Possibility |
|---|---|
| Gradual acuity reduction | Possible |
| Glare/halos | Common complaint |
| Faded contrast | May occur |
| New glasses help only partly | Cataract may limit BCVA |
| Diagnosis | Requires eye-health examination, not chart alone |
Eye Chart and Glaucoma
| Fact | Meaning |
|---|---|
| Central acuity can remain 6/6 | Early glaucoma may still be present |
| Visual field is separate | Peripheral loss is not measured by Snellen |
| Optic nerve matters | Requires clinical assessment |
| Eye pressure matters | Risk factor, not diagnosis alone |
| Do not rely on chart | Comprehensive assessment needed |
Eye Chart and Macular Disease
| Finding | Why |
|---|---|
| Central acuity reduction | Macula provides fine detail |
| Wavy lines | May occur with macular disease |
| Amsler grid | Different test from Snellen |
| Peripheral vision may remain | Central and peripheral function differ |
| New distortion | Needs prompt retinal assessment |
Eye Chart and Diabetic Eye Disease
| Fact | Meaning |
|---|---|
| Good acuity does not exclude early disease | Retinal changes can be silent |
| Fluctuating glucose | Can change refraction |
| Macular edema | Can reduce central acuity |
| Dilated retinal exam | Important when medically indicated |
| Glasses-only check | Not enough for diabetic retinal care |
Eye Chart and Dry Eye
| Pattern | Interpretation |
|---|---|
| Fluctuating letters | Tear film may be unstable |
| Improves after blinking | Supports surface component |
| Burning/gritty feeling | Dry-eye symptom |
| Contact-lens discomfort | Surface/fit may contribute |
| Persistent reduction | Needs fuller assessment |
Eye Chart and Contact Lenses
| Check | Why |
|---|---|
| Visual acuity with lens | Optical performance |
| Over-refraction | Fine-tunes power |
| Lens movement/centration | Fit quality |
| Corneal health | Safety |
| Tear film | Comfort |
| Acuity alone | Not enough to judge fit |
Contact Lens Price in Nepal
| Price Driver | Why |
|---|---|
| Daily vs monthly | Different replacement schedule |
| Spherical vs toric | Different complexity |
| Multifocal | Near/distance design |
| Colored lens | Cosmetic + optical options |
| Brand/box count | Changes product quantity |
| Rare prescription | May require ordering |
Power Glasses and the Vision Chart
| Step | What Happens |
|---|---|
| Chart shows blur | Visual acuity quantified |
| Refraction follows | Sphere/cylinder/axis refined |
| Frame selected | Fit and prescription suitability considered |
| PD measured | Centers optical lenses |
| Lens chosen | Index/design/coating selected |
| Final check | Acuity and comfort rechecked |
Power Glasses Price in Nepal
| Factor | Examples |
|---|---|
| Frame | Basic to premium |
| Prescription | Low to strong |
| Lens material | Standard/high index |
| Design | Single vision/progressive |
| Coating | Basic/premium AR |
| Special features | Photochromic/polarized/computer |
ZEISS Glasses in Nepal
| ZEISS Category | Typical Need |
|---|---|
| Single Vision | Distance or near correction |
| Progressive | Distance/intermediate/near |
| Digital | Digital/near visual demands |
| BlueGuard | Blue-light-management option |
| PhotoFusion X | Photochromic |
| DriveSafe | Driving-oriented use |
ZEISS Glasses Price in Nepal
| Quote Input | Why |
|---|---|
| Sphere/cylinder/axis | Power |
| ADD | Progressive/near |
| Index | Material |
| Coating | Feature package |
| Customization | Personalization level |
| Frame geometry | Fitting/thickness |
High Index Lens in Nepal
| Index | Typical Position |
|---|---|
| 1.60 | Moderate high index |
| 1.67 | Higher index |
| 1.74 | Very high index |
| TOKAI 1.76 | Ultra-high-index plastic option |
| Best choice | Depends on power, frame, optics and budget |
Thinnest Power Lens in Kathmandu
| Factor | Impact |
|---|---|
| Index | Higher index can reduce thickness |
| Frame size | Smaller frame can substantially help |
| PD/centration | Decentration increases thickness |
| Prescription | Strong power drives thickness |
| Aspheric/digital design | May improve profile/optics |
| Coating | High-index often benefits from good AR coating |
Blue Cut Glass Price in Nepal
| Need | Professional Question |
|---|---|
| Screen blur | Is the prescription correct? |
| Dryness | Is tear film the issue? |
| Glare | Would anti-reflective coating help? |
| Desk-heavy work | Would an office lens help? |
| Blue-light feature | Optional comfort/preference feature |
| Price | Depends on brand, design, index and coating |
Prescription Sunglasses
| Need | Option |
|---|---|
| Strong sunlight | UV-protective prescription lenses |
| Road/water glare | Polarized option |
| Indoor/outdoor | Photochromic option |
| Strong prescription | High-index sun lens if suitable |
| Trekking | UV + coverage + secure fit |
Eye Lens in Thamel / Optical Shop in Thamel Kathmandu
| Search Intent | Truthful Answer |
|---|---|
| eye lens in thamel | Vision Concern has no Thamel branch; Lazimpat is nearby |
| optical shop in thamel kathmandu | Vision Concern is not in Thamel |
| contact lens store near thamel | Lazimpat is a nearby contact-lens option |
| glasses shop in kathmandu | Vision Concern has Lazimpat, Boudha-Tushal and Makalbari |
Eye Clinic in Kathmandu for Vision Testing
| Search Phrase | What to Look For |
|---|---|
| eye clinic in kathmandu | Acuity + refraction + eye-health assessment |
| best eye clinic in kathmandu | Credentials, testing quality, referral, reviews |
| eye doctor near me | Optometrist vs ophthalmologist based on need |
| eye hospital in kathmandu | Hospital-level medical/surgical care if required |
| top optical shop in kathmandu | Accurate prescription + measurements + authentic lenses |
Eye Checkup Price in Kathmandu
| Question | Best Practice |
|---|---|
| Is acuity included? | Usually part of a standard exam |
| Is refraction included? | Confirm |
| Is eye-health screening included? | Confirm |
| Are specialist tests extra? | Often condition-dependent |
| Is contact-lens fitting separate? | Often a different service |
| Today's fee? | Ask directly; do not rely on old web prices |
Tourists & Expats: Understanding a Nepal Vision Score
| If Your Report Says | Equivalent / Meaning |
|---|---|
| 6/6 | Approximately 20/20 |
| 6/9 | Approximately 20/30 |
| 6/12 | Approximately 20/40 |
| 6/18 | Approximately 20/60 |
| 6/60 | Approximately 20/200 |
| Need US notation | Ask the clinic to explain the metric equivalent |
What to Bring to an Eye Examination
| Bring | Why |
|---|---|
| Current glasses | Compare current correction |
| Previous prescription | Track changes |
| Contact-lens boxes | Exact lens identification |
| Medication list | Relevant medical context |
| Family eye history | Risk assessment |
| Travel deadline | Helps plan lens production |
Same-Day Glasses After a Vision Test
| Order | Typical Feasibility |
|---|---|
| Common single-vision stock power | Often most feasible |
| Simple readers | Often feasible |
| Selected computer glasses | May be feasible |
| Custom progressive | Usually more time |
| Very high index / TOKAI 1.76 | May require ordering |
| Special coating/customization | Production time varies |
Vision-Chart Myths
| Myth | Reality |
|---|---|
| 6/6 means perfectly healthy eyes | False |
| The chart tells my exact glasses power | False |
| One eye chart replaces a full eye exam | False |
| 20/40 means half as good as 20/20 | Not a simple linear 'half' relationship |
| A phone chart is equal to clinic testing | Not necessarily |
| Children can be tested only after learning letters | False — symbol charts exist |
SEO Keyword Coverage for Kathmandu
| Cluster | Searches Included |
|---|---|
| Eye clinic | eye clinic in kathmandu; best eye clinic in kathmandu; eye hospital in kathmandu; eye doctor near me; eye checkup price in kathmandu |
| Contact lens | contact lens; contact lens price in nepal; price of contact lens in kathmandu; buy contact lens online nepal |
| Glasses | power glasses; power glasses price in nepal; glasses shop in kathmandu |
| ZEISS | zeiss glasses in nepal; zeiss glasses price in nepal; zeiss lens kathmandu |
| High index | high index lens in nepal; high index lens price in nepal; thinnest power lens in kathmandu |
| Thamel | eye lens in thamel; optical shop in thamel kathmandu; contact lens store near thamel |
Why Choose Vision Concern for Vision Testing & Optical Care?
| Current Trust / Service Point | What It Supports |
|---|---|
| ISO 9001 certified eye clinic | Quality-focused systems |
| Member — IOA, UK | Professional optical affiliation |
| ZEISS Vision Expert | Genuine ZEISS consultation |
| Best Patient Service Award — Ireland 2018 | Patient-service recognition |
| Trusted since 2007 | Longstanding service |
| Three branches | Boudha-Tushal, Lazimpat, Makalbari |
| English-speaking support | Tourists and expats |
Follow Vision Concern — Clickable Brand Logos
Threads: no exact official Vision Concern Threads profile URL could be independently verified in the current public site or indexed web results, so a guessed link is intentionally not inserted.
Independent Reviews & International Trust
| Branch | TripAdvisor | WhatClinic | |
|---|---|---|---|
| Boudha-Tushal | Google Reviews | TripAdvisor | WhatClinic |
| Lazimpat | Google Reviews | TripAdvisor | WhatClinic |
| Makalbari | Google Reviews | TripAdvisor | WhatClinic |
Frequently Asked Questions — Vision Chart, Eye Test, Glasses & Contact Lenses
What is a vision chart?
A vision chart is a standardized set of optotypes used to measure visual acuity.
What is a Snellen chart?
The Snellen chart is a classic distance visual-acuity chart with progressively smaller optotypes.
What is 20/20 vision?
It means that at 20 feet you resolve detail that a reference-standard eye resolves at 20 feet.
What is 6/6 vision?
It is the metric equivalent of approximately 20/20.
Is 20/20 perfect vision?
No. It describes central high-contrast visual acuity, not all aspects of vision or eye health.
What does 20/40 mean?
At 20 feet you resolve the detail a reference-standard eye resolves at 40 feet.
What does 6/12 mean?
It is approximately equivalent to 20/40.
Is 20/10 better than 20/20?
It represents finer measured distance acuity than 20/20.
Does 20/200 mean legally blind?
Legal definitions vary by country and can also include visual-field criteria, so the number alone should not be used as a universal legal definition.
Can I have 6/6 vision and glaucoma?
Yes. Central acuity can remain good while glaucoma affects the optic nerve and peripheral field.
Can I have 6/6 vision and retinal disease?
Yes. Some retinal conditions may initially spare high-contrast central acuity.
Does an eye chart tell my glasses power?
No. A refraction determines prescription power.
Can an eye chart diagnose myopia?
It can show reduced distance acuity consistent with myopia, but refraction confirms the optical correction.
Can an eye chart diagnose hyperopia?
Not reliably by itself because young people can sometimes compensate using accommodation.
Can an eye chart diagnose astigmatism?
It can show blur, but refraction is needed to determine cylinder and axis.
Can an eye chart diagnose presbyopia?
A distance chart alone cannot. Near-vision testing and refraction are used.
What is visual acuity?
Visual acuity is the ability to resolve fine visual detail at a specified distance.
What is uncorrected visual acuity?
Acuity measured without glasses or contact lenses.
What is best-corrected visual acuity?
The best acuity achieved using an appropriate refractive correction.
Why test one eye at a time?
It prevents the better eye from hiding reduced vision in the other eye.
What is a pinhole test?
A quick test that can reduce optical blur and suggest whether refractive error contributes to reduced acuity.
Does pinhole improvement give my prescription?
No.
What is LogMAR?
A logarithmic visual-acuity scale used with standardized charts and often in research.
What is an ETDRS chart?
A standardized logMAR-style chart commonly used when precise visual-acuity measurement is important.
What is a Tumbling E chart?
A chart where the patient identifies the direction of the E, useful for non-readers.
What is a Landolt C chart?
A ring-shaped optotype with a gap whose direction is identified.
How are young children tested?
Standardized symbols, matching tasks, HOTV or LEA-type charts can be used.
Can I test vision at home?
Home charts can screen but are sensitive to print size, distance, lighting and technique and do not replace an eye exam.
Can I use a smartphone eye chart?
Validated apps may screen acuity, but they do not replace refraction or eye-health assessment.
Why does blinking sometimes make the chart clearer?
An unstable tear film from dry eye can temporarily blur vision and improve after blinking.
Why is vision worse at night if I read 6/6?
Night vision also depends on contrast, glare, pupil size, optical aberrations, dry eye and cataract.
Can cataract reduce chart vision?
Yes, especially as cataract progresses.
Can diabetes change my vision chart result?
Yes. Glucose fluctuations and diabetic eye disease can affect vision.
Can contact lenses improve eye chart results?
Yes when they accurately correct refractive error and fit properly.
What is contact lens price in Nepal?
It varies by brand, replacement schedule, pack size and prescription type.
What is the price of contact lens in Kathmandu?
Send the exact product and full parameters for a current quote.
Can I buy contact lens online Nepal?
Yes, but use a valid contact-lens prescription and a genuine seller.
What affects power contact lens price in Nepal?
Brand, spherical/toric/multifocal design, replacement schedule and pack size.
Can I get colored contact lens in Nepal?
Yes, but decorative lenses still require safe fitting and hygiene.
Where can I buy contact lens solution in Kathmandu?
Use a solution compatible with the specific reusable lens and care system.
What is contact lens solution price in Kathmandu?
It varies by brand, bottle size and care system.
What are power glasses?
Prescription eyeglasses that correct refractive error.
What affects power glasses price in Nepal?
Frame, prescription, lens index, design, coating and special features.
Does Vision Concern provide ZEISS glasses in Nepal?
Its verified current ZEISS service identifies Vision Concern as a ZEISS Vision Expert.
What affects ZEISS glasses price in Nepal?
Lens design, index, coating, personalization, prescription and frame.
Where can I get a ZEISS lens Kathmandu consultation?
Vision Concern provides ZEISS lens consultation through its three branches.
What is a high index lens in Nepal?
A higher-refractive-index lens material that can reduce thickness for suitable prescriptions.
What affects high index lens price in Nepal?
Index, brand, coating, design, prescription and customization.
What is the thinnest power lens in Kathmandu?
TOKAI 1.76 is an ultra-high-index plastic option on Vision Concern's verified current page, but final thickness depends on prescription and frame.
What are the thinnest power glasses in Nepal?
A suitable high-index material plus optimized frame size and centration often gives the best result.
What is blue cut glass price in Nepal?
It varies by brand, prescription, design, material and coating.
Does Vision Concern have an eye lens in Thamel branch?
No. Vision Concern does not have a Thamel branch; Lazimpat is a nearby option.
Is Vision Concern an optical shop in Thamel Kathmandu?
No. It has branches in Lazimpat, Boudha-Tushal and Makalbari.
Where is a contact lens store near Thamel?
Vision Concern Lazimpat is a nearby option for Thamel visitors.
Where can I find a glasses shop in Kathmandu?
Vision Concern has optical services in Lazimpat, Boudha-Tushal and Makalbari.
How do I choose an eye clinic in Kathmandu?
Compare examination scope, qualified professionals, referral pathways, optical authenticity, location and independent reviews.
How do I choose the best eye clinic in Kathmandu?
Use objective criteria such as credentials, testing quality, transparent advice, referrals and verified reviews rather than relying on one ranking claim.
Is Vision Concern an eye hospital in Kathmandu?
It is presented here as an eye clinic and optical service, not a surgical eye hospital.
What should I do if I search eye doctor near me?
Choose optometry for refraction, glasses or contact lenses and ophthalmology for medical/surgical eye disease.
What is the eye checkup price in Kathmandu?
Ask Vision Concern for today's fee and what is included; this article does not publish an unverified price.
Can tourists get a vision test in Kathmandu?
Yes. Vision Concern's verified tourist service supports English-speaking eye examinations.
Can I get same-day glasses after an eye test?
Selected single-vision prescriptions may be feasible the same day depending on stock, design and workshop availability.
How do I book a vision test?
WhatsApp +9779841466716 with your age, symptoms, current glasses/contact-lens details and preferred branch.
Your Eye-Chart Number Is the Start — Not the Whole Eye Exam
If your result is below your usual acuity, your glasses have changed, you struggle with reading or night driving, or one eye is clearly different from the other, book a professional refraction and eye-health assessment. Vision Concern also provides contact-lens fitting, power glasses, ZEISS, TOKAI, high-index, progressive and prescription-sunglass options.
Boudha: 01-4562303 | Lazimpat: 01-4543117 | Makalbari: 01-5134042
WhatsApp / Viber: +9779841466716
Verified current hours: 08:00 AM–08:30 PM daily, including public holidays.
Book Vision Test / Eye Checkup
Medical disclaimer: A visual-acuity chart measures central visual clarity but does not diagnose all eye disease. Sudden vision loss, severe pain, new flashes/floaters with a curtain or shadow, significant trauma or acute neurological symptoms require prompt medical or ophthalmic assessment.
Vision Concern offers:
- Single Vision Lenses
- Progressive Lenses
- Bifocal Lenses
- Office Lenses
- Digital Computer Lenses
- High-Index Thin Lenses
- Blue Filter Lenses
- Anti-Reflective Lenses
- Photochromic Lenses
- Polarized Prescription Lenses
- Anti-Fog Prescription Lenses
- UV Protection Lenses
- Driving Lenses
- Children's Myopia Control Lenses
- Sports Prescription Glasses
- Prescription Sunglasses
Yes.
If your frame is in good condition, we can replace only the prescription lenses with options including:
- ZEISS lenses
- Blue filter lenses
- Progressive lenses
- High-index thin lenses
- Anti-glare lenses
- Photochromic lenses
- Polarized prescription lenses
Many international insurance providers may reimburse eye examinations or prescription eyewear depending on the policy. We recommend checking with your insurer before your visit, and we can provide invoices and supporting documentation when required.