Eye Handbook vs Ophthalmology Toolbox
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eye Handbook
A comprehensive eye care reference app for ophthalmologists, optometrists, and students. It offers diagnostic tools, treatment references, calculators, educational resources, and community forums to support eye care professionals.
- Diagnostic and treatment reference
- Eye calculators (visual acuity, diabetic retinopathy, etc.)
- Medication and pharmacopeia
- Ophthalmology and optometry journals
- Patient education tools
- Peer-to-peer forums
- Eye atlas and diagrams
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Eye Handbook (EHB) is an eye care reference book and an all-in-one app for Ophthalmologists, Optometrists as well as Students/Residents pursuing the field of eye care. The Eye Handbook is a smartphone diagnostic and treatment reference app for Ophthalmologists and Optometrists. Below is a list of some of the common features. -Eye Calculators -Transposition Calculator -Visual Acuity Calculator -Age to bifocal -Diabetic Retinopathy Severity Calculator -Dry Eye Disease Calculator -Glaucoma Risk Calculator -Thyroid Eye Disease Calculator -Retinoblastoma Calculator -EHB Indirect Camera -Ocular Trauma Score -Plaquenil Dosing -IOP-CCT -Pupillary Distance -DDX -Testing -ICD9 coding -ICD9 to ICD10 converter -ICD10 coding -Audio, Video downloads -Directory -Eye Atlas -Eye Wiki -Peer-to-peer Forums -Connecting with patients -Ophthalmology and Optometry Journals -Medication and Pharmacopeia -Journals -Eye Diagrams -Patient Education tools -RSS Feeds -Acronym List -Dictionary -Eponyms -Genetics -Mnemonics -Workups -Treatment Reference -Vision Symptoms Cards If you have content that you would like to contribute; please contact us at eyehandbook@gmail.com. Please feel free to contact us with any questions you may have. We are constantly striving to improve this application and welcome your feedback. www.eyehandbook.com The Eye Handbook Team
Ophthalmology Toolbox
A comprehensive medical reference and screening tool for eye care professionals. It offers a suite of clinical utilities including medication guides, vision conversion tables, fundus photography, and color vision testing, designed for efficient use in clinical settings.
- Eye Drops Guide
- VA Conversion Table
- Retina Viewer
- Nine-Gaze Camera
- Ishihara Test
- IPD Measurement
- Amsler Grid
- Cobalt Blue Screen
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A pocket toolbox for ophthalmology. Thirteen clinical tools — handbooks, screening tests, calculators, and cameras — in one native iOS app. Built for ophthalmologists, optometrists, opticians, orthoptists, residents, and medical students. Designed for the bedside, the clinic, and the corridor. Every tool is one tap away from the Home Screen. POCKET HANDBOOKS • Eye Exam Guide The eye examination in 13 step-by-step chapters, from history taking to the slit lamp, gonioscopy, and the dilated fundus. Normal values, how to record findings, common pitfalls, 85 photos and diagrams, and linked references. • Eye Drops Guide A searchable reference to more than 100 eye medications in seven categories, from antibiotics and glaucoma drops to allergy, dilation, and dry eye. Doses, forms, brands, safety, and interactions, checked against US, UK, and Saudi labels. BEDSIDE TOOLS • VA Conversion Table Meter, Feet, and decimal acuities side-by-side. Convert at a glance. • Retina Viewer Smartphone fundus photography using a 20D lens. Live camera with smooth zoom, capture photos or video, save to Photos. • Nine-Gaze Camera Guide the patient through the nine cardinal gaze positions. The app auto-stitches each frame into a single 3×3 motility montage, ready to save. • Ishihara Test 24-plate color vision screening with a 1–15 scoring table, protan/deutan classification, and linked validation studies for digital screening. • IPD Measurement Measure interpupillary distance via the TrueDepth front camera. • Amsler Grid On-screen central vision testing for macular monitoring. • Cobalt Blue Screen Blue illumination for fluorescein when a cobalt blue light source isn't available — a workaround for low-resource and emergency settings. CLINICAL CALCULATORS Live results as you dial in values, with the formulas and published sources behind every answer. • Age to Bifocal Add Set the patient's age for a tentative near add at 40 cm, with the full age-band table alongside. • Rx Toolkit Transpose between plus and minus cylinder, find the spherical equivalent, and vertex-compensate between spectacle and contact lens powers, rounded to steps you can order. • Prism Toolkit Prentice's rule for both lenses at once: vertical imbalance at the reading level, PD-error prism graded against ANSI Z80.1, and whether decentration can supply a prism. • AC/A Ratio Calculated and gradient methods side by side, with the working shown. See which binocular vision pattern the findings fit, and predict how a near add will shift the near phoria. DESIGNED FOR CLINICIANS Short workflows, help sheets that spell out technique and limitations, and no marketing fluff. Home Screen quick actions open VA Conversion, Search Medications, and Cobalt Blue Screen in one long-press. A NOTE ON SCOPE Ophthalmology Toolbox is a clinical reference and screening companion. It is not a substitute for slit-lamp examination, formal perimetry, or standard ophthalmic equipment when those are available. The Cobalt Blue Screen and digital Ishihara test are best treated as bedside workarounds, with printed plates or proper equipment used to confirm significant findings. The Eye Exam Guide supports supervised training, and the calculators support clinical judgment; neither replaces them. JUST THE BEGINNING The toolbox is still growing, with more tools and handbooks on the way. If something's missing from your workflow, send a note: the next update might add it. MEDICAL DISCLAIMER: This app is intended for educational, informational, and clinical reference purposes only. It does not provide medical diagnosis or treatment and is not a substitute for professional medical advice, clinical judgment, or consultation with a qualified healthcare professional. Users should seek a doctor’s advice before making any medical decisions or acting on information provided by this app. Designed and developed by a clinician, for clinicians.
Screenshots
Verdict
The clearest difference is rating: Eye Handbook at 4.8 against Ophthalmology Toolbox's 4.2. Eye Handbook also leads on ratings volume (1.2K vs 5) and update cadence (every 3 weeks vs every 2 months). Ophthalmology Toolbox's advantage is ads (none vs shown) and review sentiment (100% vs 82%). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Eye Handbook holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Eye Handbook has 1.2K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 82% of Eye Handbook's written reviews are positive against 100% of Ophthalmology Toolbox's, so the app with the better star average is not the one people write more warmly about.
Eye Handbook ships an update every 3 weeks, Ophthalmology Toolbox every 2 months. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.
| Parameter | Eye Handbook | Ophthalmology Toolbox |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (1.2K ratings) — better | 4.2 (5 ratings) |
| Positive reviews | 82.2% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.2K — better | 5 |
| Update frequency | Every 3 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 480 MB | 66 MB |
| Age rating | 17+ | 17+ |
| Developer | Cloud Nine Development LLC | Taha Khayat |
Customer experience
Eye Handbook
Ophthalmology Toolbox
Bugs and requests
Eye Handbook
Reported bugs
3 issues- Registration process issues
- Compatibility problems with newer iOS versions
- Incorrect medication information
Requested features
4 requests- Add Tumbling E and Landolt C charts
- Improve search functionality
- Provide a paid ad-free version
- Optimize for larger screens (iPad)
Ophthalmology Toolbox
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Eye Handbook
No in-app purchases
Ophthalmology Toolbox
No in-app purchases
Questions
Is Eye Handbook free?
Is Ophthalmology Toolbox free?
Which has better reviews, Eye Handbook or Ophthalmology Toolbox?
Do Eye Handbook or Ophthalmology Toolbox have ads?
Which is updated more often, Eye Handbook or Ophthalmology Toolbox?
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