SnellTech
Low-cost digital visual acuity testing app that replicates the Snellen Eye Chart exam on any screen. Calibrates to display size, guides users through the test protocol, and generates a shareable vision score — no clinic visit required.
What It Is
Low-cost digital visual acuity testing app that replicates the Snellen Eye Chart exam on any screen. Calibrates to display size, guides users through the test protocol, and generates a shareable vision score — no clinic visit required. GitHub describes it as: Low-cost digital vision exam with headset calibration for visual acuity assessment. 2024 EDD senior project.
Current Evidence
| Surface | Current evidence |
|---|---|
| Live site | https://snelltech.vercel.app/ |
| GitHub | Kevin-Liu-01/SnellTech-Solutions |
| Visibility | public |
| Language | TypeScript |
| PortfolioMon | #017 (Health/Web) |
| Last repo push | 2026-06-16 |
Why It Matters
This sits in the healthcare/accessibility branch of the portfolio, beside HD Transcribe: the important detail is the translation from a human constraint into a usable interface.
PortfolioMon Model
PortfolioMon card #017; Health/Web; HP 300, ATK 100, DEF 100, SPD 85; standard card.
| Move | Type | Power | Read as |
|---|---|---|---|
| Eye Exam | Health | 0 | A thorough checkup that restores 80 HP. |
| Glare | Design | 55 | A harsh light that may stun the opponent. |
| Optical Illusion | Design | 0 | A confusing pattern that might lull the foe to sleep. |
| 20/20 Vision | Health | 95 | A perfectly aimed strike with a high crit chance. |
Graph Position
This is a standalone leaf page. The complete repo/card accounting lives in Project Inventory Ledger.
Timeline
- 2024-03-13 | Repository Kevin-Liu-01/SnellTech-Solutions created. Source: raw/github/kevin-repos-2026-07-01.json
- 2026-07-01 | Page created during the project graph refresh from Kevin's live GitHub inventory, PortfolioMon card scrape, README scrape, and downloaded portfolio screenshot. Source: raw/sites/kevinliu-biz-2026-07-01/portfolio-projects.json; raw/github/kevin-repos-2026-07-01.json