LASIK Candidacy Screening & Ectasia Risk Evaluation

Patient Exam Data Entry

Record: lasik_20260930_201913_a4fb9dce

Age (years) *

yrs

Sphere (D) *

Cylinder (D) *

Calculated MRSE: -4.38 D (Sphere + Cyl / 2)

Preop CCT (µm) *

µm

Flap Thickness *

µm

Ablation Depth *

µm

Predicted / Overridden RSB (µm)

µm

Auto-calculated: 355 µm (or enter manual override)

Corneal Topography *

BAD-D (Pentacam Total D)

<1.6 Norm | 1.6–2.5 Susp | ≥2.6 High

Mesopic Pupil *

> 7.0 mm = Caution

Schirmer Test *

mm/5m

< 4 mm = Caution

Refraction Stability (past 12 months change) *

D/yr

> 0.50 D/yr = Caution (Unstable refraction)

Clinical Co-Morbidities & Systemic Risk 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

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Recent Stored Assessments

ID	Date	Age / CCT / RSB	ERSS	PTA	Action
`752_92b221f7`	Sep 30, 20:17	30y / 550µm / 380µm	Low Risk	30.9%	View \| Print
`756_2ebe0fcc`	Sep 30, 20:17	30y / 550µm / 380µm	Low Risk	30.9%	View \| Print
`800_e40bb249`	Sep 30, 20:18	30y / 550µm / 380µm	Low Risk	30.9%	View \| Print
`804_725ca1b2`	Sep 30, 20:18	30y / 550µm / 380µm	Low Risk	30.9%	View \| Print
`913_a4fb9dce`	Sep 30, 20:19	28y / 540µm / 355µm	Low Risk	34.3%	View \| Print

Assessment Result #lasik_20260930_201913_a4fb9dce Open Printable Summary (PDF)

1. Percent Tissue Altered (PTA) PASS

34.3% (0.3426)

Threshold: PTA < 0.40

Percent Tissue Altered is within safe limits (34.3% < 40.0%).

2. Randleman ERSS Low Risk

2 points (Low Risk)

Topography: Normal +0 pts

Rsb: 355 µm +0 pts

Age: 28 yrs +2 pts

Cct: 540 µm +0 pts

Mrse: -4.38 D +0 pts

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

Randleman ERSS score: 2 points (Low Risk).

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

Optional Pentacam BAD-D was not entered. Screening proceeds with PTA, ERSS, and hard safety limits.

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

Independent Binary Safety & Contraindication Checks

Safety Criterion	Patient Value	Status	Clinical Interpretation
Residual Stromal Bed (≥ 300 µm) Ref: RSB ≥ 300 µm	355 µm	PASS	Residual stromal bed thickness is adequate.
Central Corneal Thickness (≥ 500 µm) Ref: CCT ≥ 500 µm	540 µm	PASS	Pre-operative central corneal thickness is normal.
Planned Ablation Depth (≤ 100 µm) Ref: Ablation depth ≤ 100 µm	75 µm	PASS	Planned ablation depth is within standard range.
Percent Tissue Altered (PTA < 0.40) Ref: PTA < 0.40	34.3% (0.3426)	PASS	Percent tissue altered is within safe limits.
Corneal Topography (Normal pattern) Ref: Topography = Normal	Normal	PASS	Topography is regular/symmetric.
Mesopic Pupil Diameter (≤ 7.0 mm) Ref: Mesopic pupil ≤ 7.0 mm	6.2 mm	PASS	Mesopic pupil size is within normal treatment zone.
Schirmer Test (≥ 4 mm/5 min) Ref: Schirmer ≥ 4 mm	12 mm/5 min	PASS	Basal tear production meets minimum threshold.
Refraction Stability (≤ 0.50 D/year change) Ref: Refraction change ≤ 0.50 D/year	0.25 D/yr	PASS	Refraction demonstrates clinical stability over past 12 months.
Clinical History Risk Factors (0 flagged) Ref: No clinical risk flags	None	PASS	No exclusionary systemic or ocular co-morbidities selected.