LASIK Candidacy Screening & Ectasia Risk Evaluation

Step 1 of 4

Patient Demographics & Refraction

Enter patient age and manifest refraction to compute spherical equivalent.

Age (years) *

yrs

Sphere (D) *

D

Cylinder (D) *

D

Calculated MRSE: -- D Formula: Sphere + (Cylinder / 2)

Step 2 of 4

Corneal Pachymetry & Flap

Enter central corneal thickness, surgical flap, and topography pattern.

Preoperative Central Corneal Thickness (CCT) *

µm

Safe threshold: ≥ 500 µm

Planned Flap Thickness *

µm

Planned Ablation Depth *

µm

Predicted Residual Stromal Bed (RSB)

µm

Auto-calculated: -- µm (or enter manual override)

Corneal Topographic Pattern *

Step 3 of 4

Advanced Diagnostics & History

Standard parameters below. Optional Pentacam and co-morbidities are collapsed for quick entry.

Advanced Diagnostics (BAD-D, Pupil, Tear) Toggle

BAD-D (Pentacam Total D, optional)

<1.6 Norm · 1.6–2.5 Susp · ≥2.6 High Risk

Mesopic Pupil *

mm

> 7.0 mm = Caution

Schirmer Test *

mm/5m

< 4 mm = Caution

Refraction Stability (past 12m) *

D/yr

> 0.50 D/yr = Caution (Unstable refraction)

Clinical Co-Morbidities & Systemic Risk 8 Flags

Clinically significant dry eye Active or history of herpetic keratitis Corneal dystrophy or guttata Recurrent corneal erosion Uncontrolled autoimmune disease Uncontrolled diabetes Pregnancy / lactation Immunosuppressant medication use

Step 4 of 4

Candidacy Risk Evaluation

Independent indices (never a merged score). Review each parameter below.

Enter exam data or select a preset to compute candidacy risk evaluation.

1. Percent Tissue Altered (PTA) --

--

Threshold: PTA < 0.40

Enter exam data to view indices.

2. Randleman ERSS --

--

Enter exam data to view Randleman ERSS points breakdown.

Points Tier: 0–2 Low · 3 Moderate · ≥4 High Risk

Awaiting required examination inputs.

3. Belin / Ambrósio Total D (BAD-D) NOT PROVIDED

Optional Pentacam BAD-D was not entered.

Threshold: Norm <1.6 · Susp 1.6–2.5 · High ≥2.6

Independent Safety & Hard Contraindication Checks

Enter exam data to view safety checks and contraindication screening.

ID	Date	ERSS	Action
`92b221f7`	Sep 30, 20:17	Low Risk	View \| Print
`2ebe0fcc`	Sep 30, 20:17	Low Risk	View \| Print
`e40bb249`	Sep 30, 20:18	Low Risk	View \| Print
`725ca1b2`	Sep 30, 20:18	Low Risk	View \| Print
`a4fb9dce`	Sep 30, 20:19	Low Risk	View \| Print