Kuwait MOH Optometrist common mistakes
Kuwait MOH Optometrist · Understand the traps and how to avoid them.
When converting a spectacle refraction to a contact lens power, the candidate applies the vertex distance formula in the wrong direction or ignores it for high-minus lenses, then selects a lens from the trial set by sphere alone without checking the resulting over-refraction.
The candidate memorised 'minus moves closer, plus moves farther' as a slogan without internalising the sign convention, and treats vertex distance as a theoretical topic rather than a chairside step. Under time pressure, low-power lenses (under ±4.00 D) work fine without compensation, so the habit is never corrected before the high-power case appears.
What to do instead
Before every CL fitting, write the calculation explicitly: Fc = Fs / (1 - d·Fs), with d in metres and the sign of d defined once (positive when the lens moves away from the eye). Practise ten conversions spanning +12.00 to -12.00 D and verify each against a retinoscopy or over-refraction. Build the rule into the record card so the compensated power, not the spectacle power, is what gets ordered.
The candidate grades a cataract, glaucomatous disc, or diabetic retinopathy by overall impression ('looks pale', 'cup looks big') instead of applying a named grading scale and recording the specific features that drive the grade.
Undergraduate training often emphasises pattern recognition over structured grading, and slit-lamp or fundus image quality in a busy clinic discourages careful measurement. The candidate fears committing to a number and so retreats to vague descriptors that feel safer.
What to do instead
Adopt one scale per condition and use it every time: LOCS III for nuclear colour and cortical/capsular opacity, vertical cup-to-disc ratio plus neuroretinal rim rule (ISNT) and disc haemorrhage for glaucoma, and ETDRS or the International Clinical DR scale for retinopathy. Record the raw observations (cup diameter, rim width, number of microaneurysms in a defined zone) alongside the grade so the decision is auditable and referable.
On a case of sudden painless vision loss or a red painful eye, the candidate proceeds straight to refraction and subjective acuity, or reassures the patient and books a routine review, without performing the triage steps that separate an emergency from a benign presentation.
The candidate has rehearsed routine examination sequences far more than emergency algorithms, and the anxiety of an unexpected presentation leads to filling the time with familiar tests. There is also a misplaced belief that 'the doctor will see it anyway', which delays referral.
What to do instead
Memorise and rehearse a fixed emergency screen: sudden painless loss (central retinal artery occlusion, retinal detachment, vitreous haemorrhage), painful red eye with reduced acuity (acute angle closure, keratitis, uveitis, endophthalmitis), and flashes/floaters with a field defect. For each, state the same-day action, the referral destination, and what must not be done (e.g. no mydriatic in a shallow anterior chamber with rising pressure; no pressure on a globe with a penetrating injury).
The candidate performs cover test, motility, and stereoacuity but reports only 'cover test normal' without stating the direction, magnitude, and recovery of any deviation, and without distinguishing a phoria from a tropia or an intermittent deviation.
Binocular vision is often taught as a list of named tests rather than a decision tree, so the candidate runs the tests but does not know which finding changes management. Recording a single summary word feels efficient and avoids exposing uncertainty about interpretation.
What to do instead
Structure every BV record as: deviation at distance and near (prism dioptres, with and without correction), laterality and comitance, control (phoric/intermittent/tropia), and recovery on alternate cover. Then state the diagnosis explicitly (e.g. 'intermittent exotropia, distance, 18 PD, good control') and the plan. Practise classifying ten worked cases into phoria, intermittent, and constant before touching a patient.
The candidate dispenses a progressive addition lens or high-cylinder prescription without measuring pantoscopic tilt, vertex distance, monocular pupillary distances, or frame wrap, and without checking that the reading corridor matches the patient's habitual reading distance.
Dispensing is treated as a retail step rather than an optical one, and automated lensmeters and edging equipment create a false sense of precision. The candidate also assumes the previous pair's measurements are still valid after a frame change.
What to do instead
For every progressive or high-power order, measure and record monocular PDs, fitting cross height relative to the pupil, pantoscopic tilt, vertex distance, and frame face-form. Match the corridor length and inset to the patient's near working distance and any anisometropia. On collection, verify the delivered lens against the order with a lensmeter and check acuity at distance and near in the frame.
The candidate describes a corneal ulcer or contact lens complication but omits the specific lens history (material, wear schedule, overnight use, solution, case hygiene, days since last replacement) and gives generic hygiene advice instead of a targeted management plan.
Contact lens modules are often passed on lens parameters and fitting curves, leaving microbial keratitis and hypoxia as lecture slides rather than a clinical routine. The candidate is also reluctant to probe a patient's non-compliance directly.
What to do instead
Take a structured lens history on every red eye in a lens wearer: lens type and Dk/t, daily or extended wear, replacement frequency, tap water exposure, solution and case routine, and time since last new lens. Pair this with the clinical findings (infiltrate size, location, overlying epithelial defect, anterior chamber reaction) to decide cease-wear, same-day referral, or review. Document the advice given and the review interval.
The candidate interprets a visual field printout or OCT scan by looking at the summary indices (MD, pattern deviation plot, average RNFL thickness) without checking reliability indices, fixation losses, segmentation, or whether the pattern of loss respects the vertical midline and the expected nerve fibre bundle anatomy.
Automated reports present a conclusion-shaped summary, and the candidate has limited practice reading raw data. Machine output feels authoritative, and time pressure discourages opening the raw data or repeating an unreliable test.
What to do instead
Read every field in a fixed order: reliability (fixation losses, false positives, false negatives), then the grayscale and pattern deviation plots, then whether the defect is hemifield-respecting and respects the midline. For OCT, check signal strength, segmentation lines, and correspondence with the field and disc. Repeat any unreliable test before acting on it, and never diagnose glaucoma from a single field.
The candidate answers pharmacology questions by naming a drug class but cannot state the concentration, the indication-specific choice, the key contraindication, or the observation period after instillation, and does not consider systemic risk in patients with asthma, cardiac disease, or pregnancy.
Drug lists are memorised as vocabulary rather than as clinical decisions, and the candidate has rarely had to justify a choice under challenge. Emergency drugs (pilocarpine, atropine, fluorescein, topical anaesthetic, antibiotic) are learned separately from the conditions they treat.
What to do instead
Build a one-page table for each drug used in practice: concentration, indication, contraindication, duration of action, and required monitoring (e.g. IOP check after mydriatic in a shallow chamber; no repeat anaesthetic for pain relief; fluorescein with a cobalt filter after a foreign body). Rehearse the two or three emergency scenarios where the drug choice is time-critical.
The candidate treats infection control as a list of rules recited for the exam but breaks them in practice, for example reusing a contaminated trial lens or tonometer tip, failing to perform hand hygiene between patients, or not documenting the disinfection cycle.
Written policies and daily habits diverge, and the candidate has not seen a documented transmission event, so the risk feels abstract. Equipment shortages and busy clinics normalise shortcuts, and the candidate assumes someone else is responsible for decontamination.
What to do instead
Apply the same sequence to every patient contact: hand hygiene before and after, barrier protection where indicated, and a defined decontamination step for every reusable item (tonometer prism, trial lens, occluder, chin rest). Know the contact time and concentration of the disinfectant you use, keep a log, and be able to state what to do after a splash or a needlestick. Treat this as a clinical step, not paperwork.
The candidate gives a referral letter or a patient explanation that names a diagnosis but omits the measured findings, the urgency, the requested action, and the patient's understanding, and does not record consent or the advice given about driving, work, or follow-up.
Communication is assessed implicitly rather than taught as a skill, and the candidate assumes the receiving clinician will repeat the tests. Documentation habits formed in training are often minimal, and the candidate is uncomfortable discussing uncertainty or bad news.
What to do instead
Use a fixed referral template: reason for referral, key measurements (acuity, IOP, fields, imaging, lens details), differential and level of concern, urgency with a timeframe, and the specific question asked of the recipient. Close every consultation with a teach-back: ask the patient to repeat the plan and the warning symptoms in their own words, and record that you did so.